Julien Diaz

Chengyi Shen, Daniel Brito, Julien Diaz, Federici Sanjuan, Clarisse Bordes, et al.. Pulsed-laser source characterization in laboratory seismic experiments. Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Springer, 2022, 8 (1), ⟨10.1007/s40948-021-00315-9⟩. ⟨hal-03494134⟩

Hélène Barucq, Julien Diaz, Vanessa Mattesi, Sébastien Tordeux. Asymptotic behavior of acoustic waves scattered by very small obstacles. ESAIM: Mathematical Modelling and Numerical Analysis, EDP Sciences, In press, 55, pp.705 - 731. ⟨10.1051/m2an/2020047⟩. ⟨hal-01250654v2⟩

Nacéra Baara, Julien Diaz, Mounir Tlemcani. Time domain analysis and localization of a non-local PML for dispersive wave equations. Journal of Computational Physics, Elsevier, 2021, 445, pp.110638. ⟨10.1016/j.jcp.2021.110638⟩. ⟨hal-03523312⟩

Hélène Barucq, Abderrahmane Bendali, Julien Diaz, Sébastien Tordeux. Local strategies for improving the conditioning of the plane-wave Ultra-Weak Variational Formulation. Journal of Computational Physics, Elsevier, In press, 441, pp.110449. ⟨10.1016/j.jcp.2021.110449⟩. ⟨hal-03235684⟩

Hélène Barucq, Julien Diaz, Rose-Cloé Meyer, Ha Pham. Implementation of Hybridizable Discontinuous Galerkin method for time-harmonic anisotropic poroelasticity in two dimensions.. International Journal for Numerical Methods in Engineering, Wiley, 2021. ⟨hal-03464413⟩

Izar Azpiroz, Hélène Barucq, Julien Diaz, Rabia Djellouli. An effective numerical strategy for retrieving all characteristic parameters of an elastic scatterer from its FFP measurements. Journal of Computational Physics, Elsevier, 2020, 419, ⟨10.1016/j.jcp.2020.109683⟩. ⟨hal-02961043⟩

Juliette Chabassier, Julien Diaz, Sébastien Imperiale. Construction and analysis of fourth order, energy consistent, family of explicit time discretizations for dissipative linear wave equations. ESAIM: Mathematical Modelling and Numerical Analysis, EDP Sciences, 2020, 54 (3), pp.845-878. ⟨10.1051/m2an/2019079⟩. ⟨hal-01894238v2⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Elvira Shishenina. Space-time Trefftz-DG approximation for elasto-acoustics. Applicable Analysis, Taylor & Francis, 2018, 00, pp.1 - 16. ⟨hal-01940623⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stéphane Lanteri. Hybridizable discontinuous Galerkin method for the two-dimensional frequency-domain elastic wave equations. Geophysical Journal International, Oxford University Press (OUP), 2018, 213 (1), pp.637--659. ⟨10.1093/gji/ggx533⟩. ⟨hal-01656440⟩

Julien Diaz, Victor Péron. Equivalent Robin Boundary Conditions for Acoustic and Elastic Media. Mathematical Models and Methods in Applied Sciences, World Scientific Publishing, 2016. ⟨hal-01254194⟩

Angel Rodriguez Rozas, Julien Diaz. Non-conforming curved finite element schemes for time-dependent elastic–acoustic coupled problems. Journal of Computational Physics, Elsevier, 2016, 305, pp.44--62. ⟨10.1016/j.jcp.2015.10.028⟩. ⟨hal-01255188⟩

Julien Diaz, Marcus Grote. Multi-level explicit local time-stepping methods for second-order wave equations. Computer Methods in Applied Mechanics and Engineering, Elsevier, 2015, 291, pp.240-265. ⟨10.1016/j.cma.2015.03.027⟩. ⟨hal-01184090⟩

Kersten Schmidt, Julien Diaz, Christian Heier. Non-conforming Galerkin finite element methods for local absorbing boundary conditions of higher order. Computers & Mathematics with Applications, Elsevier, 2015, 70 (9), pp. 2252--2269. ⟨10.1016/j.camwa.2015.08.034⟩. ⟨hal-01184251⟩

Hélène Barucq, Lionel Boillot, Henri Calandra, Julien Diaz. Absorbing Boundary Conditions for 2D Tilted Transverse Isotropic Media. ESAIM: Proceedings, EDP Sciences, 2014, Congrès SMAI 2013, 45, pp.400-409. ⟨10.1051/proc/201445041⟩. ⟨hal-01085442⟩

Mohamed Amara, Sharang Chaudhry, Julien Diaz, Rabia Djellouli, Steven Fiedler. A local wave tracking strategy for efficiently solving mid-and high-frequency Helmholtz problems.. Computer Methods in Applied Mechanics and Engineering, Elsevier, 2014, 276, pp.473--508. ⟨10.1016/j.cma.2014.03.012⟩. ⟨hal-01010465⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. High-Order Time Discretization Of The Wave Equation By Nabla-P Scheme. ESAIM: Proceedings, EDP Sciences, 2014, 45, pp.67 - 74. ⟨10.1051/proc/201445007⟩. ⟨hal-01111071⟩

Manuela Castro, Julien Diaz, Victor Péron. Equivalent Boundary Conditions for Heterogeneous Acoustic Media. Tendências em Matemática Aplicada e Computacional, Sociedade Brasileira de Matemática Aplicada e Computacional, 2014, 15 (3), pp.301-310. ⟨10.5540/tema.2014.015.03.0301⟩. ⟨hal-01110728⟩

Julien Diaz. Jeter un œil " Au centre de la Terre ". Mathématiques de la Planète Terre, un jour une brève, Association Animath, 2013. ⟨hal-00924636⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Long-Time Stability Analysis of Acoustic Absorbing Boundary Conditions for Regular-Shaped Surfaces. Mathematical Models and Methods in Applied Sciences, World Scientific Publishing, 2013, 23 (11), pp.2129-2154. ⟨hal-00759451⟩

Cyril Agut, Julien Diaz. Stability analysis of the Interior Penalty Discontinuous Galerkin method for the wave equation. ESAIM: Mathematical Modelling and Numerical Analysis, EDP Sciences, 2013, 47 (3), pp.903-932. ⟨10.1051/m2an/2012061⟩. ⟨hal-00759457⟩

Julien Diaz. Prospection pétrolière : le sous-sol révélé. Textes et documents pour la classe, SCEREN-CNDP (2002-2013), CANOPE (2014- ), INRDP (1967- ), 2013, Les mathématiques de la Terre, pp.32-33. ⟨hal-00904018⟩

Cyril Agut, Julien Diaz, Abdelaâziz Ezziani. High-Order Schemes Combining the Modified Equation Approach and Discontinuous Galerkin Approximations for the Wave Equation. Communications in Computational Physics, Global Science Press, 2012, 11 (2), pp.691-708. ⟨10.4208/cicp.311209.051110s⟩. ⟨hal-00646421⟩

Hélène Barucq, Théophile Chaumont-Frelet, Julien Diaz, Victor Péron. Upscaling for the Laplace problem using a discontinuous Galerkin method. Journal of Computational and Applied Mathematics, Elsevier, 2012, ⟨10.1016/j.cam.2012.05.025⟩. ⟨hal-00757098⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Micro-differential boundary conditions modelling the absorption of acoustic waves by 2D arbitrarily-shaped convex surfaces. Communications in Computational Physics, Global Science Press, 2012, 11 (2), pp.674-690. ⟨10.4208/cicp.311209.260411s⟩. ⟨hal-00649837⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Bertrand Denel, Julien Diaz. Performance Analysis of a High-Order Discontinuous Galerkin Method. Application to the Reverse Time Migration. Communications in Computational Physics, Global Science Press, 2012, 11 (2), pp.660-673. ⟨10.4208/cicp.291209.171210s⟩. ⟨hal-00643334⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Julien Diaz. Numerical performances of a hybrid local-time stepping strategy applied to the reverse time migration. Geophysical Prospecting, Wiley, 2011, 59 (5), pp.907-919. ⟨10.1111/j.1365-2478.2011.00975.x⟩. ⟨hal-00627603⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Stability Analysis of the Interior Penalty Discontinuous Galerkin Method for Solving the Wave Equation Coupled with High-Order Absorbing Boundary Conditions. Monografías del Seminario Matemático García de Galdeano, PUZ Prensas de la Universidad de Zaragoza, 2010, 35, pp.49--56. ⟨hal-00867195⟩

Julien Diaz, Roland Martin. Sonder l'invisible (du séisme au modèle). Interstices, INRIA, 2010. ⟨hal-00748780⟩

Julien Diaz, Abdelaâziz Ezziani. Analytical solution for waves propagation in heterogeneous acoustic/porous media. Part I: the 2D case. Communications in Computational Physics, Global Science Press, 2010, 7 (1), pp.171-194. ⟨10.4208/cicp.2009.08.148⟩. ⟨inria-00404224⟩

Hélène Barucq, Julien Diaz, Mounir Tlemcani. New absorbing layers conditions for short water waves. Journal of Computational Physics, Elsevier, 2010, 229, pp.58-72. ⟨10.1016/j.jcp.2009.08.033⟩. ⟨inria-00418317⟩

Julien Diaz, Abdelaâziz Ezziani. Analytical solution for waves propagation in heterogeneous acoustic/porous media. Part II: the 3D case. Communications in Computational Physics, Global Science Press, 2010, 7 (3), pp.445-472. ⟨10.4208/cicp.2009.08.149⟩. ⟨inria-00404228⟩

Julien Diaz, Marcus Grote. Energy Conserving Explicit Local Time-Stepping for Second-Order Wave Equations. SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2009, 31 (3), pp.1985-2014. ⟨10.1137/070709414⟩. ⟨inria-00409233⟩

Ronan Madec, Dimitri Komatitsch, Julien Diaz. Energy-conserving local time stepping based on high-order finite elements for seismic wave propagation across a fluid-solid interface. Computer Modeling in Engineering and Sciences, Tech Science Press, 2009, 49 (2), pp.163-189. ⟨10.3970/cmes.2009.049.163⟩. ⟨inria-00436429⟩

Julien Diaz, Patrick Joly. A time domain analysis of PML models in acoustics.. Computer Methods in Applied Mechanics and Engineering, Elsevier, 2006, 195 (29-32), pp.3820-3853. ⟨10.1016/j.cma.2005.02.031⟩. ⟨inria-00410313⟩

Julien Diaz, Patrick Joly. AN ANALYSIS OF HIGHER ORDER BOUNDARY CONDITIONS FOR THE WAVE EQUATION. SIAM Journal on Applied Mathematics, Society for Industrial and Applied Mathematics, 2005, 65 (5), pp.1547-1575. ⟨10.1137/S0036139903436145⟩. ⟨inria-00409197⟩

Julien Diaz, Patrick Joly. Robust high order non-conforming finite element formulation for time domain fluid-structure interaction. Journal of Computational Acoustics, World Scientific Publishing, 2005, 13 (3), pp.403-431. ⟨10.1142/S0218396X05002736⟩. ⟨inria-00409201⟩

Christina Morency, Eric Matzel, Niels Grobbe, Daniel Brito, Clarisse Bordes, et al.. Seismoelectric effects for geothermal resources assessment and monitoring. IMAGE 2021 - Society of Exploration Geophysicists Annual Meeting and Exposition, Sep 2021, Denver, United States. ⟨hal-03287783⟩

Chengyi Shen, Daniel Brito, Julien Diaz, Clarisse Bordes, Jean Virieux, et al.. Tomographic imaging of a carbonate core using different ultrasonic seismic sources at the laboratory scale : piezoelectric vs point-like pulsed-laser. IMAGE 2021 - Society of Exploration Geophysicists Annual Meeting and Exposition, Sep 2021, Denver, United States. ⟨hal-03287748⟩

Stefano Frambati, Hélène Barucq, Henri Calandra, Julien Diaz. Unlocking the power of unstructured Isogeometric Analysis: some recent mathematical advances and a more unified framework for the numerical analysis of PDEs. Mathias Days 2021 – Applied Mathematics, Scientific Computing, Data Science and Artificial Intelligence – TotalEnergies R&D, Oct 2021, Paris, France. ⟨hal-03520504⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Stefano Frambati. Unlocking the power of unstructured Isogeometric Analysis: a unified framework and some applications to wave propagation and elasticity. IX International Conference on Isogeometric Analysis, Sep 2021, Lyon, France. ⟨hal-03520492⟩

Yder Masson, Julien Diaz, Florian Faucher, Sevan Adourian, Barbara Romanowicz, et al.. Wave-propagation modeling using the distributional finite difference method. AGU Fall Meeting 2019, Dec 2019, San Francisco, United States. ⟨hal-02429725⟩

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout. High-order DG-SE approximations of elastodynamic wave problems with stable Perfectly Matched Layers. MATHIAS 2019, Oct 2019, Serris, France. ⟨hal-02425960⟩

Pierre Jacquet, Andreas Atle, Hélène Barucq, Henri Calandra, Julien Diaz. Time Domain Full Waveform Inversion involving Discontinuous Galerkin approximation. WAVES 2019 - 14th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Aug 2019, Vienna, Austria. ⟨hal-02422856⟩

Pierre Jacquet, Andreas Atle, Hélène Barucq, Henri Calandra, Julien Diaz. Numerical Scheme Impacts on Time Domain Full Waveform Inversion. MATHIAS 2019, Oct 2019, Serris, France. ⟨hal-02422842⟩

Yder Masson, Hélène Barucq, Julien Diaz, Barbara Romanowicz, Sevan Adourian. Modeling seismic wave propagation through the Earth for imaging localized structures. EGU General Assembly 2019, Apr 2019, Vienna, Austria. pp.2019 - 8286. ⟨hal-02429713⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Elvira Shishenina. Space-time Trefftz-DG methods on tent pitching meshes for elastoacoustic wave propagation. ICIAM 2019 - International Congress on Industrial and Applied Mathematics, Jul 2019, Valencia, Spain. ⟨hal-02361167⟩

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout. Approximation SEM-DG pour les problèmes d'ondes elasto-acoustiques. JOSO 2019 - Journées Ondes Sud-Ouest, Mar 2019, Le Barp, France. ⟨hal-02070730⟩

Hélène Barucq, Abderrahmane Bendali, Julien Diaz, Sébastien Tordeux. On the finite element solution of helmholtz problems in anisotropic media. Journées Ondes Sud-Ouest (JOSO), Mar 2019, Le Barp, France. ⟨hal-02138982⟩

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout. High order discretization of seismic waves-problems based upon DG-SE methods. WAVES 2019 - 14th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Aug 2019, Vienne, Austria. ⟨hal-02277988⟩

Pierre Jacquet, Hélène Barucq, Julien Diaz, Henri Calandra. Full Waveform Inversion Adjoint Studies MATHIAS 2018. MATHIAS 2018 - Computational Science Engineering & Data Science by TOTAL, Oct 2018, Serris, France. ⟨hal-01907804⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Elvira Shishenina. Space-time Trefftz-DG approach for elasto-acoustic wave propagation. WCCM 2018 - 13th World Congress on Computational Mechanics, Jul 2018, New-York, United States. ⟨hal-01940530⟩

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout. SEM-DG Approximation for elasto-acoustics. MATHIAS 2018 Computational Science Engineering & Data Science by TOTAL, Oct 2018, Serris, France. ⟨hal-01872812v2⟩

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout. On the coupling of Spectral Element Method with Discontinuous Galerkin approximation for elasto-acoustic problems. 13th World Congress of Computational Mecanics, Jul 2018, New-York, United States. ⟨hal-01907431⟩

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout. Hybrid space discretization to solve elasto-acoustic coupling. Fifth international congress on multiphysics, multiscale, and optimization problems, May 2018, Bilbao, Spain. ⟨hal-01808793⟩

Chengyi Shen, Daniel Brito, Julien Diaz, Deyuan Zhang, Clarisse Bordes, et al.. On the use of a pulsed-laser source in laboratory seismic experiments. AGU Meeting 2018, Dec 2018, Washington, United States. ⟨hal-01957131⟩

Chengyi Shen, Daniel Brito, Julien Diaz, Deyuan Zhang, Valier Poydenot, et al.. On the use of a laser ablation as a laboratory seismic source. EGU GENERAL ASSEMBLY, Apr 2017, Vienna, Austria. pp.2017 - 13963. ⟨hal-01513597⟩

Izar Azpiroz, Hélène Barucq, Julien Diaz, Rabia Djellouli. Full determination of the characteristics of elastic scatters from some FFP measurements. WAVES 2017 - 13th International Conference on Mathematical and Numerical Aspects of Wave Propagation, May 2017, Minneapolis, United States. pp.1-84. ⟨hal-01694544⟩

Henri Calandra, Elvira Shishenina, Julien Diaz, Hélène Barucq. Trefftz-DG Approximation for the Elasto-Acoustics. WAVES 2017 - 13th International Conference on Mathematical and Numerical Aspects of Wave Propagation, May 2017, Minneapolis, United States. ⟨hal-01693111⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Elvira Shishenina. Trefftz -Discontinuous Galerkin Approach for Solving Elastodynamic Problem. ENUMATH 2017 - European Conference on Numerical Mathematics and Advanced Applications, Sep 2017, Voss, Norway. ⟨hal-01691617v2⟩

Vinícius Machado, Amanda Braga, Natália Rampon, Jean Bez, Francieli Boito, et al.. Towards Energy-Efficient Storage Servers. 32nd ACM Symposium on Applied Computing (SAC 2017), Sung Y. Shin, Apr 2017, Marrakesh, Morocco. ⟨hal-01519168⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stéphane Lanteri. Performances analysis of a Hybridizable discontinuous Galerkin solver for the 3D Helmholtz equations in geophysical context. Third EAGE workshop on High performance computing for Upstream, Oct 2017, Athens, Greece. ⟨hal-01677290⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stephane Lanteri. Hybridizable Discontinuous Galerkin Methods for modelling 3D seismic wave propagation in harmonic domain. WAVES 2017 - 13th International Conference on Mathematical and Numerical Aspects of Wave Propagation, May 2017, Minneapolis, United States. ⟨hal-01693189⟩

Hélène Barucq, Abderrahmane Bendali, Julien Diaz, Sébastien Tordeux. A Trefftz method whose shape functions are constructed thanks to a high-order DG finite element method. WAVES 2017 - 13th International Conference on Mathematical and Numerical Aspects of Wave Propagation, May 2017, Minnesota, United States. ⟨hal-01691588⟩

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout. Spectral Element Method and Discontinuous Galerkin approximation for elasto-acoustic problems. MATHIAS – TOTAL Symposium on Mathematics, Oct 2017, Paris, France. ⟨hal-01690670⟩

Lionel Boillot, Hélène Barucq, Julien Diaz, Henri Calandra. Absorbing Boundary Conditions for 3D Elastic TTI Modeling, Application to Time-Based and Time-Harmonic Simulations. EAGE Saint Petersburg International Conference & Exhibition, Apr 2016, Saint Petersburg, Russia. ⟨hal-01303391⟩

Daniel Brito, Chengyi Shen, Julien Diaz, S. Garambois, Clarisse Bordes. imaging in laboratory trough laser Doppler vibrometry.. Measuring by Light 2016, Conference and Short-Course on Optical Measurement Techniques for Industrial and Societal Challenges., Decembre 2016, Pretoria, Afrique du Sud, 2016, Pretoria, South Africa. ⟨hal-02152117⟩

Chengyi Shen, Daniel Brito, Valier Poydenot, Julien Diaz, Stéphane Garambois, et al.. Seismic wave propagation in heterogeneous limestone samples. Journées d'Etude des Milieux Poreux, Oct 2016, Anglet, France. ⟨hal-01388195⟩

Izar Azpiroz, Hélène Barucq, Julien Diaz, Rabia Djellouli. Shape and material parameter reconstruction of an isotropic or anisotropic solid immersed in a fluid. Inverse Problems for PDEs, University of Bremen, Germany, Mar 2016, Bremen, Germany. ⟨hal-01408981⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Elvira Shishenina. Trefftz-DG Approximation for the Elasto-Acoustics. Workshop de DIP, l’action stratégique INRIA TOTAL, Oct 2016, Houston, United States. ⟨hal-01416241⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stephane Lanteri. Comparison of solvers performance when solving the 3D Helmholtz elastic wave equations over the Hybridizable Discontinuous Galerkin method. MATHIAS – TOTAL Symposium on Mathematics, Oct 2016, Paris, France. ⟨hal-01400663⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stephane Lanteri. Resolution strategy for the Hybridizable Discontinuous Galerkin system for solving Helmholtz elastic wave equations. Face to face meeting HPC4E Brazilian-European project, Sep 2016, Gramado, Brazil. ⟨hal-01400643⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stephane Lanteri. Comparison of solvers performance when solving the 3D Helmholtz elastic wave equations using the Hybridizable Discontinuous Galerkin method. Workshop DIP - Depth Imaging Partnership, Oct 2016, Houston, United States. ⟨hal-01400656⟩

Manuela Castro, Julien Diaz, Victor Péron. Equivalent absorbing boundary conditions for heterogeneous acoustic media . ICOSAHOM 2016 - International Conference on Spectral and High-Order Methods, Jun 2016, Rio de Janeiro, Brazil. pp.301-310, ⟨10.1590/S2179-84512014000300007⟩. ⟨hal-01691552⟩

Lionel Boillot, Corentin Rossignon, George Bosilca, Emmanuel Agullo, Henri Calandra, et al.. Handling clusters with a task-based runtime system: application to Geophysics. Rice - Oil & Gas HPC Workshop, Mar 2016, Houston, United States. ⟨hal-01303373⟩

Daniel Brito, Valier Poydenot, Stéphane Garambois, Julien Diaz, Clarisse Bordes, et al.. Seismic imaging in laboratory trough laser Doppler vibrometry. European Geosciences Union General Assembly 2016, Apr 2016, Vienne, Austria. ⟨hal-01313013⟩

Hélène Barucq, Morgane Bergot, Juliette Chabassier, Julien Diaz. Performance assessments of absorbing conditions for the reverse time-harmonic migration. PANACM 2015 - 1st Pan-American Congress on Computational Mechanic, Apr 2015, Buenos Aires, Argentina. pp.1-8. ⟨hal-01184102⟩

Lionel Boillot, Hélène Barucq, Julien Diaz, Henri Calandra. Stable TTI Acousto-Elastic simulations. Workshop DIP - Depth Imaging Partnership (INRIA-TOTAL), Jun 2015, Pau, France. ⟨hal-01188522⟩

Lionel Boillot, Hélène Barucq, Julien Diaz, Henri Calandra. Absorbing Boundary Conditions for 3D elastic TTI modeling. SEG - Society of Exploration Geophysicists, Oct 2015, Nouvelle-Orléans, United States. pp.535-540, ⟨10.1190/segam2015-5910360.1⟩. ⟨hal-01223344⟩

Julien Diaz, Victor Péron. Equivalent Robin Boundary Conditions for Acoustic and Elastic Media. First Inria-Mexico Workshop in Applied Mathematics and Computer Science, Jun 2015, Mexico City, Mexico. ⟨hal-01254193⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stéphane Lanteri. Modelling of seismic waves propagation in harmonic domain by hybridizable discontinuous Galerkin method (HDG). Workshop GEAGAM, May 2015, Pau, France. ⟨hal-01207906⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stéphane Lanteri. Modeling of elastic Helmholtz equations by hybridizable discontinuous Galerkin method (HDG) for geophysical applications. 5th workshop France-Brazil HOSCAR, Sep 2015, Nice, France. ⟨hal-01207897⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stephane Lanteri. Performance comparison between hybridizable DG and classical DG methods for elastic waves simulation in harmonic domain. Workshop Oil & Gas Rice 2015, Mar 2015, Houston, Texas, United States. ⟨hal-01207886⟩

Hélène Barucq, Julien Diaz, Rabia Djellouli, Elodie Estecahandy. High-order Discontinuous Galerkin approximations for elasto-acoustic scattering problems. XXIV Congress on Differential Equations and Applications / XIV Congress on Applied Mathematics (XXIV CEDYA / XIV CMA), Jun 2015, Cadiz, Spain. ⟨hal-01184107⟩

Hélène Barucq, Abderrahmane Bendali, Julien Diaz, M'Barek Fares, Vanessa Mattesi, et al.. A non-dispersive discontinuous Galerkin method for the simulation of acoustic scattering in complex media.. Fall 2015 - 170th Meeting Acoustical Society of America, Nov 2015, Jacksonville, United States. ⟨10.1121/1.4933581⟩. ⟨hal-01691619⟩

Emmanuel Agullo, Hélène Barucq, Lionel Boillot, George Bosilca, Henri Calandra, et al.. Portable task-based programming for seismic wave propagation simulation in time domain. HOSCAR – 5th Brazil-French workshop on High performance cOmputing and SCientific dAta management dRiven by highly demanding applications (INRIA-CNPq), Sep 2015, Sophia Antipolis, France. ⟨hal-01208461⟩

Lionel Boillot, Emmanuel Agullo, George Bosilca, Henri Calandra, Hélène Barucq, et al.. Portable task-based programming for elastodynamics. Rice - Oil & Gas HPC Workshop, Mar 2015, Houston, United States. ⟨hal-01128750⟩

Hélène Barucq, Lionel Boillot, Henri Calandra, Julien Diaz. Absorbing Boundary Conditions for 3D Tilted Transverse Isotropic media. First Pan-American Congress on Computational Mechanic (PANACM 2015), Apr 2015, Buenos Aires, Argentina. ⟨hal-01184104⟩

Hélène Barucq, Lionel Boillot, Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, et al.. Discontinuous Galerkin Approximations for Seismic Wave Propagation in a HPC Framework. Platform for Advanced Scientific Computing Conference (PASC 15), Jun 2015, Zurich, Switzerland. ⟨hal-01184106⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stéphane Lanteri. Performance Assessment on Hybridizable Dg Approximations for the Elastic Wave Equation in Frequency Domain. SIAM Conference on Mathematical and Computational Issues in the Geosciences, Jun 2015, Stanford, United States. ⟨hal-01184111⟩

Lionel Boillot, Hélène Barucq, Julien Diaz, Henri Calandra. Absorbing Boundary Conditions for Tilted Transverse Isotropic elastic media. ECCOMAS, WCCM XI - ECCM V - ECFD VI, Jul 2014, Barcelona, Spain. ⟨hal-01057581⟩

Lionel Boillot, Hélène Barucq, Julien Diaz, Henri Calandra. Optimized wave propagation for geophysics. Journée scientifique du MCIA (Mésocentre de Calcul Intensif Aquitain), Feb 2014, Pau, France. ⟨hal-01057582⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Jérôme Luquel. Imaging of complex media with elastic wave equations. 2014 eccomas, Jul 2014, barcelone, Spain. ⟨hal-01096616⟩

M Bonnasse-Gahot, Henri Calandra, Julien Diaz, S Lanteri. Discontinuous Galerkin methods for solving Helmholtz elastic wave equations for seismic imaging. WCCM XI - ECCM V - ECFD VI - Barcelona 2014, Jul 2014, Barcelone, Spain. ⟨hal-01096324⟩

M Bonnasse-Gahot, Henri Calandra, Julien Diaz, S Lanteri. Hybridizable Discontinuous Galerkin method for solving Helmholtz elastic wave equations. EAGE Workshop on High Performance Computing for Upstream, Sep 2014, Chania, Greece. ⟨hal-01096385⟩

M Bonnasse-Gahot, Henri Calandra, Julien Diaz, S Lanteri. Numerical schemes for the simulation of seismic wave propagation in frequency domain. Réunion des Sciences de la Terre 2014, Oct 2014, Pau, France. ⟨hal-01096390⟩

M Bonnasse-Gahot, Henri Calandra, Julien Diaz, S Lanteri. Performance analysis of DG and HDG methods for the simulation of seismic wave propagation in harmonic domain. Second Russian-French Workshop "Computational Geophysics", Sep 2014, Berdsk, Russia. ⟨hal-01096392⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. (Portable) Task-based programming model for elastodynamics. EAGE workshop on HPC for Upstream, Sep 2014, Chania, Greece. pp.1-4, ⟨10.3997/2214-4609.20141922⟩. ⟨hal-01070015⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. Arbitrary High Order Time Scheme for Wave Equation. The 10th AIMS Conference on Dynamical Systems, Differential Equations and Applications, Jul 2014, Madrid, Spain. ⟨hal-01111091⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. High order schemes for the first order formulation of the wave equation. Application to seismic imaging.. Journées Ondes du Sud-Ouest, Feb 2014, Toulouse, France. ⟨hal-01111082⟩

Hélène Barucq, Abderrahmane Bendali, Julien Diaz, M'Barek Fares, Sébastien Tordeux. A discontinuous Galerkin method whose shape functions are constructed thanks to an integral equation formulation. CG 2014 - Second Russian – French Workshop “Computational Geophysics”, Sep 2014, Berdsk, Russia. ⟨hal-01691657⟩

Julien Diaz, Vanessa Mattesi, Sébastien Tordeux. Equivalent source modelling of small heterogeneities in the context of 3D time-domain wave propagation equation. TAMTAM 2013, Sixième colloque sur les Tendances dans les Applications Mathématiques en Tunisie, Algérie, Maroc, Apr 2013, Alger, Algeria. ⟨hal-00925359⟩

Hélène Barucq, Julien Diaz, Florent Ventimiglia, Henri Calandra. High-Order Time Discretization Of The Wave Equation By Nabla-P Scheme. SMAI 2013, May 2013, Seignosse, France. pp.ESAIM: PROCEEDINGS. ⟨hal-00924030⟩

Mohamed Amara, Julien Diaz, Rabia Djellouli. Mesh Free Frontier-based Formulation for Helmholtz Problems. Congrès de Mathématiques Appliquées en l'honneur de Mohamed Amara, Laboratoire d'EDP Non Linéaires, ENS-Kouba, Sep 2013, Alger, Algeria. ⟨hal-00924026⟩

Mohamed Amara, Sharang Chaudry, Julien Diaz, Rabia Djellouli, Steven Fiedler. Local Basis Set Optimization to Efficiently Solve Helmholtz Problems. WAVES 13 : 11th International Conference on Mathematical and Numerical Aspects of Waves, ENIT Lamsin, Jun 2013, Gammarth, Tunisia. pp.355-356. ⟨hal-00927044⟩

Mohamed Amara, Julien Diaz, Rabia Djellouli. Mesh Free Frontier-Based Formulation (MF3) for High Frequency Helmholtz Problems. COMPDYN 2013 : 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Jun 2013, Kos, Greece. ⟨hal-00924012⟩

Julien Diaz, Vanessa Mattesi, Sébastien Tordeux. Small heterogeneities in the context of time domain wave equation. Journées Singulières Augmentées, Aug 2013, Rennes, France. ⟨hal-00927377⟩

Hélène Barucq, Julien Diaz, Florent Ventimiglia, Henri Calandra. High-Order Time Scheme Of The Wave Equation Using Nabla-P Scheme. Mathias 2013, Oct 2013, Paris, France. ⟨hal-00924013⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. Absorbing Boundary Conditions for Tilted Transverse Isotropic waves in Reverse Time Migration context. Waves -- International Conference on Mathematical and Numerical Aspects of Waves, Jun 2013, Gammarth, Tunisia. ⟨hal-00868135⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. High Order Time Discretization Of The Wave Equation By Nabla-P Scheme. Application to the Reverse Time Migration. WAVES 2013, Jun 2013, Gammarth, Tunisia. ⟨hal-00924172⟩

Hélène Barucq, Juliette Chabassier, Julien Diaz, Elodie Estecahandy. Numerical Analysis of a reduced formulation of an elasto-acoustic scattering problem. WAVES 13 : 11th International Conference on Mathematical and Numerical Aspects of Waves, Jun 2013, Gammarth, Tunisia. ⟨hal-00873633⟩

Hélène Barucq, Chokri Bekkey, Julien Diaz. Performance assesment of a fractional radiation boundary condition for the Helmholtz equation. WAVES 13 : 11th International Conference on Mathematical and Numerical Aspects of Waves, ENIT Lamsin, Jun 2013, Gammarth, Tunisia. pp.291-292. ⟨hal-00923995⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. On the use of high-order schemes for seismic imaging. Valparaíso Numérico IV : Séptimo Encuentro de Análisis Numérico de Ecuaciones Diferenciales Parciales, Pontificia Universidad Católica de Valparaíso, Dec 2013, Valparaiso, Chile. ⟨hal-00924039⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. Méthodes d'ordre élevé pour l'imagerie sismique mathématique. Haute Fréquence, Mar 2013, Nancy, France. ⟨hal-00925578⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. High-Order Explicit Time Scheme for Simulation of Wave Propagation. HOSCAR - 3rd Brazil-French workshop on High performance cOmputing and SCientific dAta management dRiven by highly demanding applications (INRIA-CNPq), Sep 2013, Bordeaux, France. ⟨hal-00929904⟩

Julien Diaz, Victor Péron. Equivalent Conditions for Elasto-Acoustics. Waves 2013 - 11th International Conference on Mathematical and Numerical Aspects of Waves, Jun 2013, Gammarth, Tunisia. pp.345-346. ⟨hal-00842571⟩

Hélène Barucq, Julien Diaz, Mounir Tlemcani. Perfectly Matched Layers for linearized and non linear Shallow Water equation. WAVES 13 : 11th International Conference on Mathematical and Numerical Aspects of Waves, ENIT Lamsin, Jun 2013, Gammarth, Tunisia. pp.297-298. ⟨hal-00923939⟩

Lionel Boillot, Emmanuel Agullo, Hélène Barucq, George Bosilca, Henri Calandra, et al.. Optimized propagators for elastic waves with anisotropy Part 1: Applied Mathematics Part 2: High-Performance Computing. XSEDE -- International Summer School on HPC Challenges in Computational Sciences (PRACE workshop), Jun 2013, New York, United States. ⟨hal-00868169⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. Absorbing Boundary Conditions for anisotropic elastodynamic media. 1st Russian-French Conference on Mathematical Geophysics, Mathematical Modeling in Continuum Mechanics and Inverse Problems, Jun 2012, Biarritz, France. ⟨hal-00764192⟩

Hélène Barucq, Julien Diaz, Florent Ventimiglia, Henri Calandra. High order time discretization of the wave equation by nabla-p schemes. Aquitanie-Euskadi Workshop on Applied Mathematics (Aquitanie-Euskadi 2012), Oct 2012, Biarritz, France. ⟨hal-00764188⟩

Mohamed Amara, Sharang Chaudhry, Julien Diaz, Rabia Djellouli, Steven Fiedler. Efficient solution methodology based on a local wave tracking strategy for high-frequency Helmholtz problems. 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012), Oct 2012, Vienna, Austria. ⟨hal-00765537⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. Optimized propagators for elastic waves in anisotropic (TTI) media Part 1: Absorbing Boundary Conditions (ABC). MATHIAS - TOTAL Symposium on Mathematics, Oct 2012, Paris, France. ⟨hal-00764202⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. Parallel optimization of a Discontinuous Galerkin method for seismic imaging simulation. Towards the Intel MIC acceleration.. HOSCAR - 2nd Brazil-French workshop on High performance cOmputing and SCientific dAta management dRiven by highly demanding applications (INRIA-CNPq), Sep 2012, Petropilis, Brazil. ⟨hal-00764200⟩

Lionel Boillot, Hélène Barucq, Julien Diaz, Henri Calandra. Absorbing Boundary Conditions for anisotropic elastodynamic media. Workshop DIP - Depth Imaging Partnership (INRIA-TOTAL), Apr 2012, Pau, France. ⟨hal-00764186⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. Optimized propagators for elastic waves in anisotropic (TTI) media Part 1: Absorbing Boundary Conditions (ABC). Aquitaine-Euskadi Workshop on Applied Mathematics (INRIA-BCAM), Oct 2012, Biarritz, France. ⟨hal-00764206⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. Absorbing Boundary Conditions for anisotropic elastodynamic media. HOSCAR - 1st Brazil-French workshop on High performance cOmputing and SCientific dAta management dRiven by highly demanding applications (INRIA-CNPq), Jul 2012, Sophia Antipolis, France. ⟨hal-00764196⟩

Lionel Boillot, Hélène Barucq, Henri Calandra, Julien Diaz. Absorbing Boundary Conditions for anisotropic elastodynamic media. ICOSAHOM - International Conference on Spectral and High Order Methods, Jun 2012, Gammarth, Tunisia. ⟨hal-00767597⟩

Hélène Barucq, Julien Diaz, Florent Ventimiglia, Henri Calandra. High order time scheme for the first order wave equation using nabla-p scheme. Application to the Reverse Time Migration. Symposium MATHIAS 2012, TOTAL SA, Oct 2012, Paris, France. ⟨hal-00764222⟩

Hélène Barucq, Julien Diaz, Henri Calandra, Florent Ventimiglia. High Order Schemes and Local Time Stepping for Solving Elastodynamic Wave Equation in Strongly Heterogeneous Media.. First Russian-French Conference on Mathematical Geophysics, Mathematical Modeling in Continuum Mechanics and Inverse Problems, Jun 2012, Biarritz, France. ⟨hal-00764181⟩

Hélène Barucq, Lionel Boillot, Henri Calandra, Julien Diaz. Absorbing boundary conditions for anisotropic elastodynamic media. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00811168⟩

Hélène Barucq, Julien Diaz, Sébastien Tordeux. Introduction to the mathematical analysis of the Helmholtz equation : Sommerfeld condition, limiting amplitude principle and limiting absorption principle. Summer School Jaca 2012, Sep 2012, Jaca, Spain. ⟨hal-00927403⟩

Hélène Barucq, Julien Diaz, Florent Ventimiglia, Henri Calandra. High Order Schemes For The First Order Wave Equation. Application to the Reverse Time Migration. Workshop DIP Total/Inria, Apr 2012, Pau, France. ⟨hal-00764207⟩

Cyril Agut, Julien Diaz. Stability analysis of the Interior Penalty Discontinuous Galerkin method for the wave equation. Conference on Frontiers in Applied and Computational Mathematics, May 2012, Newark, United States. ⟨hal-00748782⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Enriched Absorbing Boundary Conditions for Acoustic Waves. Conference on Frontiers in Applied and Computational Mathematics, Jun 2011, Newark, United States. ⟨hal-00768550⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Complete factorization of the wave equation for the construction of absorbing boundary conditions involving a fractional derivative. 10th International Conference on Mathematical and Numerical Aspects of Wave Propagation (Waves 2011), Jul 2011, Vancouver, Canada. ⟨hal-00768539⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Julien Diaz, Florent Ventimiglia. Hybrid local-time stepping strategy for the Reverse Time Migration. 10th International Conference on Mathematical and Numerical Aspects of Wave Propagation (Waves 2011), Jul 2011, Vancouver, Canada. ⟨hal-00768541⟩

Caroline Baldassari, Hélène Barucq, Julien Diaz. Explicit hp-Adaptive Time Scheme for the Wave Equation. Domain Decomposition (DD20), Feb 2011, San Diego, United States. ⟨hal-00660048⟩

Cyril Agut, Julien Diaz. Stability analysis of the interior penalty discontinuous Galerkin method for the wave equation. 10th International Conference on Mathematical and Numerical Aspects of Wave Propagation (Waves 2011), Jul 2011, Vancouver, Canada. ⟨hal-00768544⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Approximate boundary conditions based on a complete transparent condition for the acoustic wave equation. 10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France. ⟨hal-00554446⟩

Cyril Agut, Julien Diaz, Abdelaâziz Ezziani. High-order discretizations for the wave equation based on the modified equation technique. 10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France. ⟨hal-00554448⟩

Véronique Duprat, Julien Diaz, Hélène Barucq. Development and optimization of absorbing boundary conditions for acoustic wave problems in complex media. XIV Jacques-Louis Lions Spanish-French school on numerical simulation in physics and engineering, Sep 2010, A Coruna, Spain. ⟨inria-00527250⟩

Véronique Duprat, Julien Diaz, Hélène Barucq. Factorisation complète de l'équation des ondes pour la construction de conditions aux limites absorbantes. CANUM 2010, 40e Congrès National d'Analyse Numérique, May 2010, Carcans Maubuisson, France. ⟨inria-00527161⟩

Cyril Agut, Julien Diaz. High-order discretizations for the wave equation based on the modified equation technique. XIV Spanish-French Jacques-Louis Lions School, Sep 2010, A Coruna, Spain. ⟨inria-00527136⟩

Cyril Agut, Julien Diaz. Une nouvelle approche de type équation modifiée pour des discrétisations d'ordre élevé en espace et en temps de l'équation des ondes. CANUM 2010, 40e Congrès National d'Analyse Numérique, May 2010, Carcans-Maubuisson, France. ⟨inria-00527133⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Enriched absorbing boundary conditions for the acoustic wave equation involving a fractional derivative. Third Chilean Workshop on Numerical Analysis of Partial Differential Equations (WONAPDE 2010), Jan 2010, Concepcion, Chile. ⟨inria-00508593⟩

Caroline Baldassari, Hélène Barucq, Julien Diaz. High-Order Schemes with Local Time Stepping for Solving the Wave Equation in a Reverse Time Migration Algorithm. 2010 ISFMA Symposium & Shanghai Summer School on Maxwell' equations: Theoretical and Numerical Issues with Applications, Jul 2010, Shanghaï, China. ⟨inria-00508634⟩

Cyril Agut, Julien Diaz, Abdelaâziz Ezziani. A new modified equation approach for high-order space and time discretizations of the wave equation. Third Chilean Workshop on Numerical Analysis of Partial Differential Equations (WONAPDE 2010), Jan 2010, Concepcion, Chile. ⟨inria-00508590⟩

Caroline Baldassari, Hélène Barucq, Julien Diaz. An hp-adaptive energy conserving time scheme for the wave equation.. Third Chilean Workshop on Numerical Analysis of Partial Differential Equations, WONAPDE 2010, Jan 2010, Concepcion, Chile. ⟨inria-00508541⟩

Caroline Baldassari, Hélène Barucq, Julien Diaz. Schémas d'ordre élevé à pas de temps local pour la résolution de l'équation des ondes. Séminaire du Groupe de Modélisation Mathématiques Mécanique et Numérique (GM3N), Oct 2010, Caen, France. ⟨inria-00529641⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Absorbing Boundary Condition Taking into Account the Grazing Modes. 2010 SIAM Annual Meeting (AN10), Jul 2010, Pittsburgh, United States. ⟨inria-00508632⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Julien Diaz. Méthodes numériques pour l'imagerie sismique. Congrès d'Analyse NUMérique, May 2010, Carcans-Maubuisson, France. ⟨inria-00527419⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Julien Diaz. Numerical Simulation of Wave Propagation applied to seismic Imaging. 1er colloque Franco-Tunisien de Mathématiques SMF/SMT, Mar 2009, Djerba, Tunisia. ⟨inria-00527240⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. New absorbing boundary conditions for the acoustic wave equation approximated by an IPDG formulation. ICTCA 2009, Sep 2009, Dresden, Germany. ⟨inria-00508603⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Bertrand Denel, Julien Diaz. Using the Interior Penalty Discontinuous Galerkin method for the Reverse Time Migration. The 9th International Conference on Mathematical and Numerical Aspects of Waves Propagation (WAVES 2009), Jun 2009, Pau, France. ⟨inria-00508565⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Bertrand Denel, Julien Diaz. The Reverse Time Migration technique coupled with interior Penalty Discontinuous Galerkin Method. Annual meeting of the European Geophysical Union (EGU 09), Apr 2009, Vienna, Austria. ⟨inria-00508586⟩

Cyril Agut, Julien Diaz, Abdelaâziz Ezziani. Fast High-Order Method for Solving the Transient Wave Equation,. International Conference on Spectral and High Order Methods, (ICOSAHOM09), Jun 2009, Trondheim, Norway. ⟨inria-00508582⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Bertrand Denel, Julien Diaz. Comparison of the Performance of Spectral Finite Elements and Interior Penalty Discontinous Galerkin Methods for the Reverse Time Migration. International Conference on Spectral and High Order Methods (ICOSAHOM09), Jun 2009, Trondheim, Norway. ⟨inria-00508579⟩

Cyril Agut, Julien Diaz, Abdelaâziz Ezziani. Fast high-order method for solving the acoustic wave equation in heterogeneous media. ICTCA 2009, Sep 2009, Dresden, Germany. ⟨inria-00508626⟩

Hélène Barucq, Julien Diaz, Mounir Tlemcani. Stable Perfectly Matched Layer for Short Water Waves. The 9th International Conference on Mathematical and Numerical Aspects of Waves Propagation (WAVES 2009), Jun 2009, Pau, France. ⟨inria-00508571⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. IPDG formulation of the acoustic wave equation incorporating absorbing boundary conditions. The 9th International Conference on Mathematical and Numerical Aspects of Waves Propagation (WAVES 2009), Jun 2009, Pau, France. ⟨inria-00508598⟩

Cyril Agut, Julien Diaz, Abdelaâziz Ezziani. High-order method in space and time for solving the wave equation. The 9th International Conference on Mathematical and Numerical Aspects of Waves Propagation (WAVES 2009), Jun 2009, Pau, France. ⟨inria-00508583⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Bertrand Denel, Julien Diaz. Analysis of the performance of the Interior Penality Discontinuous Galerkin method. Journée en l'honneur de Gene Golub, CERFACS, Feb 2008, Toulouse, France. ⟨inria-00527278⟩

Julien Diaz, Patrick Joly. Application of Cagniard de Hoop Method to the Analysis of Perfectly Matched Layers. 3rd IFAC Workshop on Fractional Differentiation and its Applications, Nov 2008, Ankara, Turkey. ⟨inria-00343016⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Bertrand Denel, Julien Diaz. The reverse time migration technique coupled with finite element methods. 5èmes journées du GDR Etude de la propagation ultrasononore en vue du contrôle non-destructif, Jun 2008, Anglet, France. ⟨inria-00343542⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. High Order Absorbing Boundary Conditions for solving the Wave Equation by Discontinuous Galerkin Methods. Proceedings of the Tenth International Conference Zaragoza-Pau on Applied Mathematics and Statistics, 2008, Jaca, Spain. ⟨inria-00508630⟩

Cyril Agut, Julien Diaz, Abdelaâziz Ezziani. A New Modified Equation Approach for solving the Wave Equation. Proceedings of the Tenth International Conference Zaragoza-Pau on Applied Mathematics and Statistics, 2008, Jaca, Spain. ⟨inria-00508629⟩

Caroline Baldassari, Hélène Barucq, Henri Calandra, Bertrand Denel, Julien Diaz. High-order Discontinuous Galerkin Methods for the Reverse Time Migration. The 5th. European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008), Jun 2008, Venice, Italy. ⟨inria-00508600⟩

Julien Diaz, Marcus Grote. Energy conserving explicit local time stepping for second-order wave equations.. The 8th International Conference on Mathematical and Numerical Aspects of Waves Propagation (WAVES 2007), Jul 2007, Reading, United Kingdom. ⟨inria-00508573⟩

Julien Diaz, Marcus Grote. Explicit local time stepping for second-order wave equations. International Conference on SCIentific Computation And Differential Equations, SCICADE 2007, July 9 - 13, 2007, Saint-Malo, France, Jul 2007, Saint-Malo, France. ⟨inria-00508577⟩

Andreas Atle, Hélène Barucq, Henri Calandra, Julien Diaz, Pierre Jacquet. Time-Domain Full Waveform Inversion based on high order discontinuous numerical schemes. AGU Fall meeting 2019, Dec 2019, San Francisco, United States. ⟨hal-02422862⟩

Chengyi Shen, Daniel Brito, Julien Diaz, Deyuan Zhang, Clarisse Bordes, et al.. On the use of a pulsed-laser source in laboratory seismic experiments. AGU meeting 2018, Dec 2018, Washington, United States. ⟨hal-01957147⟩

Chengyi Shen, Daniel Brito, Julien Diaz, Deyuan Zhang, Jochen Schell, et al.. High resolution spatial and temporal laboratory seismic datasets by Laser Doppler Vibrometry. AGU Fall Meeting, Dec 2018, Washington, United States. ⟨hal-01972134⟩

Jérôme Luquel, Hélène Barucq, Julien Diaz, Henri Calandra. Imaging of complex media with elastic wave equations. SIAM Conference on IMAGING SCIENCE, May 2014, Hong Kong, China. 2014. ⟨hal-01096620⟩

Marie Bonnasse-Gahot, Stéphane Lanteri, Julien Diaz, Henri Calandra. Performance comparison of HDG and classical DG method for the simulation of seismic wave propagation in harmonic domain. Journées Total-Mathias 2014, Oct 2014, Paris, France. ⟨hal-01096318⟩

Lionel Boillot, Hélène Barucq, Julien Diaz, Henri Calandra. Absorbing Boundary Conditions for anisotropic elastic waves. SMAI - Congrès, 6e Biennale Française de la Société de Mathématiques Appliquées et Industrielles, 2013, Seignosse, France. ⟨hal-01133055⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Elvira Shishenina. Polynomial Space-Time Trefftz-DG Method for Elasto-Acoustics. MATHIAS 2018, Oct 2018, Serris, France. ⟨hal-01907784⟩

Marie Bonnasse-Gahot, Stephane Lanteri, Julien Diaz, Henri Calandra. Discontinuous Galerkin methods for solving Helmholtz isotropic wave equations for seismic applications. HOSCAR - 3rd Brazil-French workshop on High performance cOmputing and SCientific dAta management dRiven by highly demanding applications (INRIA-CNPq), Sep 2013, Bordeaux, France. 2013. ⟨hal-00929971⟩

Julien Diaz, Abdelaâziz Ezziani, N. Le Goff. Logiciels Gar6more2D et Gar6more3D. 2010. ⟨hal-00868517⟩

Julien Diaz, Arnaud Langlois, Roland Martin. Probing the invisible, from the earthquake to the model. 2010. ⟨hal-00904051⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Stefano Frambati. Polynomial-reproducing spline spaces from fine zonotopal tilings. [Research Report] RR-9350, Inria Bordeaux - Sud-Ouest; Total E&P. 2020, pp.30. ⟨hal-02865801v3⟩

Hélène Barucq, Julien Diaz, Rose-Cloé Meyer, Ha Pham. Low-order absorbing boundary condition for two-dimensional isotropic poroelasticity. [Research Report] RR-9358, Inria. 2020. ⟨hal-02911686v2⟩

Hélène Barucq, Julien Diaz, Rose-Cloé Meyer, Ha Pham. Implementation of HDG method for 2D anisotropic poroelastic first-order harmonic equations. [Research Report] RR-9326, Inria Bordeaux Sud-Ouest; UPPA (LMA-Pau). 2020. ⟨hal-02486942⟩

Izar Azpiroz, Hélène Barucq, Julien Diaz, Rabia Djellouli. Full determination of elastic scatterer characteristics from FFP measurements. [Research Report] RR-9247, INRIA Bordeaux; California State University at Northridge. 2019, pp.72. ⟨hal-01976990⟩

Hélène Barucq, Julien Diaz, Rose-Cloé Meyer, Ha Pham. Analytic solutions and transmission eigenvalues in isotropic poroelasticity for bounded domain, scattering of obstacles and fluid-solid interaction problems in 2D. [Research Report] RR-9312, INRIA Bordeaux; UPPA (LMA-Pau). 2019. ⟨hal-02408315⟩

Hélène Barucq, Henri Calandra, Julien Diaz, Elvira Shishenina. Space-Time Trefftz - Discontinuous Galerkin Approximation for Elasto-Acoustics. [Research Report] RR-9104, Inria Bordeaux Sud-Ouest; UPPA (LMA-Pau); Total E&P. 2017. ⟨hal-01614126⟩

Hélène Barucq, Julien Diaz, Vanessa Mattesi. Polynomial speeds in a Discontinuous Galerkin code. [Internship report] INRIA Bordeaux. 2015, pp.57. ⟨hal-01176854v2⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stéphane Lanteri. Discontinuous Galerkin methods for the simulation of the propagation of the elastic wave equations in the frequency domain. [Research Report] RR-8989, INRIA Bordeaux; INRIA Sophia Antipolis - Méditerranée. 2015, pp.56. ⟨hal-01408700v2⟩

Marie Bonnasse-Gahot, Henri Calandra, Julien Diaz, Stéphane Lanteri. Hybridizable Discontinuous Galerkin method for the simulation of the propagation of the elastic wave equations in the frequency domain. [Research Report] RR-8990, INRIA Bordeaux; INRIA Sophia Antipolis - Méditerranée. 2015, pp.46. ⟨hal-01408705v2⟩

Mohamed Amara, Sharang Chaudry, Julien Diaz, Rabia Djellouli, Steven Fiedler. A Local Wave Tracking Strategy for Efficiently Solving Mid- and High-Frequency Helmholtz Problems. [Research Report] RR-8364, INRIA. 2013, pp.47. ⟨hal-00861988⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. Long-term stable acoustic absorbing boundary conditions for regular-shaped surfaces. [Research Report] RR-8203, INRIA. 2013, pp.34. ⟨hal-00776058⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. A new family of second-order absorbing boundary conditions for the acoustic wave equation - Part I: Construction and mathematical analysis. [Research Report] RR-7553, INRIA. 2011. ⟨inria-00570301⟩

Hélène Barucq, Julien Diaz, Véronique Duprat. A new family of second-order absorbing boundary conditions for the acoustic wave equation - Part II : Mathematical and numerical studies of a simplified formulation. [Research Report] RR-7575, INRIA. 2011. ⟨inria-00578152⟩

Cyril Agut, Jean-Michel Bart, Julien Diaz. Numerical study of the stability of the Interior Penalty Discontinuous Galerkin method for the wave equation with 2D triangulations. [Research Report] RR-7719, INRIA. 2011. ⟨inria-00617817⟩

Cyril Agut, Julien Diaz. Stability analysis of the Interior Penalty Discontinuous Galerkin method for the wave equation. [Research Report] RR-7494, INRIA. 2010, pp.34. ⟨inria-00547862v2⟩

Cyril Agut, Julien Diaz. New high order schemes based on the modified equation technique for solving the wave equation. [Research Report] RR-7331, INRIA. 2010, pp.34. ⟨inria-00497627⟩

Julien Diaz, Abdelaâziz Ezziani. Analytical Solution for Wave Propagation in Stratified Poroelastic Medium. Part II: the 3D Case. [Research Report] RR-6596, INRIA. 2008, pp.40. ⟨inria-00305891⟩

Julien Diaz, Abdelaâziz Ezziani. Analytical Solution for Wave Propagation in Stratified Acoustic/Porous Media. Part II: the 3D Case. [Research Report] RR-6595, INRIA. 2008, pp.31. ⟨inria-00305884⟩

Julien Diaz, Abdelaâziz Ezziani. Analytical Solution for Wave Propagation in Stratified Acoustic/Porous Media. Part I: the 2D Case. [Research Report] RR-6509, INRIA. 2008, pp.28. ⟨inria-00274136v3⟩

Julien Diaz, Abdelaâziz Ezziani. Analytical Solution for Wave Propagation in Stratified Poroelastic Medium. Part I: the 2D Case. [Research Report] RR-6591, INRIA. 2008, pp.27. ⟨inria-00305395⟩

Julien Diaz, Marcus Grote. Energy Conserving Explicit Local Time-Stepping for Second-Order Wave Equations. [Research Report] RR-6377, INRIA. 2007, pp.34. ⟨inria-00193160v2⟩

Julien Diaz, Patrick Joly. Une présentation mathématique de la méthode de Cagniard-de Hoop Partie I En dimension deux. [Rapport de recherche] RR-5824, INRIA. 2006, pp.89. ⟨inria-00070201⟩

Julien Diaz, Patrick Joly. Une présentation mathématique de la méthode de Cagniard-de Hoop Partie II En dimension trois. [Rapport de recherche] RR-5825, INRIA. 2006, pp.93. ⟨inria-00070200⟩

Julien Diaz, Patrick Joly. An Analysis of Higher Order Boundary Conditions for the Wave Equation.. [Research Report] RR-4962, INRIA. 2003. ⟨inria-00071617⟩

Julien Diaz. Approches analytiques et numériques de problèmes de transmission en propagation d'ondes en régime transitoire. Application au couplage fluide-structure et aux méthodes de couches parfaitement adaptées. Modélisation et simulation. ENSTA ParisTech, 2005. Français. ⟨tel-00008708⟩

Julien Diaz. Modelling and advanced simulation of wave propagation phenomena in 3D geophysical media.. Analysis of PDEs [math.AP]. Université de Pau et des Pays de l'Adour, 2016. ⟨tel-01304349⟩