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A construction of beam propagation methods for optical waveguides

Xavier Antoine , Pierre Dreyfuss , Karim Ramdani
Communications in Computational Physics, 2009, 6 (3), pp.565-576
Article dans une revue hal-00429158v1
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Asymptotic analysis of a Neumann problem in a domain with cusp. Application to the collision problem of rigid bodies in a perfect fluid

Alexandre Munnier , Karim Ramdani
SIAM Journal on Mathematical Analysis, 2015, 47 (6), pp.4360-4403. ⟨10.1137/14099526X⟩
Article dans une revue hal-00994433v3
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Transparent boundary conditions for locally perturbed infinite hexagonal periodic media.

Christophe Besse , Julien Coatleven , Sonia Fliss , Ingrid Lacroix-Violet , Karim Ramdani
Communications in Mathematical Sciences, 2013, 11 (4), pp.907-938
Article dans une revue hal-00698916v1
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A reconstruction method for the inverse gravimetric problem

Anthony Gerber-Roth , Alexandre Munnier , Karim Ramdani
SMAI Journal of Computational Mathematics, 2023, 9, pp.197-225
Article dans une revue hal-04157036v2
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On the numerical approximation of high-frequency acoustic multiple scattering problems by circular cylinders

Xavier Antoine , Chokri Chniti , Karim Ramdani
Journal of Computational Physics, 2008, 227 (3), pp.1754-1771. ⟨10.1016/j.jcp.2007.09.030⟩
Article dans une revue hal-00260393v1
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Selective focusing on small scatterers in acoustic waveguides using time reversal mirrors

Bruno Pinçon , Karim Ramdani
Inverse Problems, 2007, 23 (1), pp.1-25. ⟨10.1088/0266-5611/23/1/001⟩
Article dans une revue istex hal-00125005v1
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Mathematical analysis of conductive and superconductive transmission lines

Anne-Sophie Bonnet-Ben Dhia , Karim Ramdani
SIAM Journal on Applied Mathematics, 2000, 60 (6), pp.2087-2113. ⟨10.1137/S0036139999352420⟩
Article dans une revue hal-01009815v1
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Wide Frequency Band Numerical Approaches for Multiple Scattering Problems by Disks

Xavier Antoine , Karim Ramdani , Bertrand Thierry
Journal of Algorithms and Computational Technology, 2012, 6 (2), pp.241-260. ⟨10.1260/1748-3018.6.2.241⟩
Article dans une revue hal-00644373v1
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Internal stabilization of the plate equation in a square : the continuous and the semi-discretized problems.

Karim Ramdani , Takeo Takahashi , Marius Tucsnak
Journal de Mathématiques Pures et Appliquées, 2006, 85 (1), pp.17-37. ⟨10.1016/j.matpur.2005.10.006⟩
Article dans une revue hal-00091373v1
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Detectability and state estimation for linear age-structured population diffusion models

Karim Ramdani , Marius Tucsnak , Julie Valein
ESAIM: Mathematical Modelling and Numerical Analysis, 2016, 50 (6), pp.1731-1761. ⟨10.1051/m2an/2016002⟩
Article dans une revue hal-01140166v4
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T-coercivity for the asymptotic analysis of scalar problems with sign-changing coefficients in thin periodic domains

Renata Bunoiu , Karim Ramdani , Claudia Timofte
Electronic Journal of Differential Equations, 2021, 2021 (59), pp.1-22
Article dans une revue hal-02974043v2
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Observer-based feedback-control for the stabilization of a class of parabolic systems

Imene Aicha Djebour , Karim Ramdani , Julie Valein
2023
Pré-publication, Document de travail hal-04155214v1
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Homogenization of a transmission problem with sign-changing coefficients and interfacial flux jump

Renata Bunoiu , Karim Ramdani , Claudia Timofte
Communications in Mathematical Sciences, 2023, 21 (7), pp.2029-2049. ⟨10.4310/CMS.2023.v21.n7.a13⟩
Article dans une revue hal-03712444v3
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Far field model for time reversal and application to selective focusing on small dielectric inhomogeneities

Corinna Burkard , Aurelia Minut , Karim Ramdani
Inverse Problems and Imaging , 2013, 7 (2), pp.445-470
Article dans une revue hal-00793911v1

Reconstructing initial data using observers : error analysis of the semi-discrete and fully discrete approximations

Ghislain Haine , Karim Ramdani
2010
Pré-publication, Document de travail hal-00512824v1
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Etude numérique de la résolution par équations intégrales de la diffraction multiple par des disques

Xavier Antoine , Karim Ramdani , Bertrand Thierry
10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France
Communication dans un congrès hal-00533171v1
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A time reversal based algorithm for solving initial data inverse problems

Kazufumi Ito , Karim Ramdani , Marius Tucsnak
Discrete and Continuous Dynamical Systems - Series S, 2011, 4 (3), pp.641-652
Article dans une revue hal-00586314v1
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Diffraction par un obstacle situé dans un réseau de plaques semi-infinies

Anne-Sophie Bonnet-Ben Dhia , Karim Ramdani , Axel Tillequin
Comptes rendus de l'Académie des sciences. Série I, Mathématique, 2000, 331 (12), pp.977-982. ⟨10.1016/S0764-4442(00)01762-6⟩
Article dans une revue istex hal-01009269v1
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Transmission through a thick periodic slab

Karim Ramdani , Stephen Shipman
Mathematical Models and Methods in Applied Sciences, 2008, 18 (4), pp.543-572. ⟨10.1142/S0218202508002772⟩
Article dans une revue hal-00271735v1
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A constraint on the maximum reflectance of rapidly oscillating dielectric gratings

Gang Bao , David Dobson , Karim Ramdani
SIAM Journal on Control and Optimization, 2002, 40 (6), pp.1858-1866. ⟨10.1137/S036301290037435X⟩
Article dans une revue hal-01205880v2
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Uniformly exponentially stable approximations for a class of second order evolution equations. Application to LQR optimization problems

Karim Ramdani , Takeo Takahashi , Marius Tucsnak
ESAIM: Control, Optimisation and Calculus of Variations, 2007, 13 (3), pp.503-527. ⟨10.1051/cocv:2007020⟩
Article dans une revue hal-00140476v1
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A spectral approach for the exact observability of infinite dimensional systems with skew-adjoint generator.

Karim Ramdani , Takeo Takahashi , Gérald Tenenbaum , Marius Tucsnak
Journal of Functional Analysis, 2005, 226, pp.193-229. ⟨10.1016/j.jfa.2005.02.009⟩
Article dans une revue hal-00091371v1
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A non elliptic spectral problem related to the analysis of superconductive micro-strip lines

Anne-Sophie Bonnet-Ben Dhia , Karim Ramdani
ESAIM: Mathematical Modelling and Numerical Analysis, 2002, 36 (3), pp.461-487. ⟨10.1051/m2an:2002021⟩
Article dans une revue hal-00990209v1
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On the detection of small moving disks in a fluid

Alexandre Munnier , Karim Ramdani
SIAM Journal on Applied Mathematics, 2016, 76 (1), pp.159-177. ⟨10.1137/141001226⟩
Article dans une revue hal-01098067v4

Diffraction by an acoustic grating perturbed by a bounded obstacle

Anne-Sophie Bonnet-Ben Dhia , Karim Ramdani
Advances in Computational Mathematics, 2002, 16 (2-3), pp.113-138. ⟨10.1023/A:1014437813575⟩
Article dans une revue istex hal-00990202v1
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Adaptive observer for age-structured population with spatial diffusion

Karim Ramdani , Julie Valein , Jean-Claude Vivalda
North-Western European Journal of Mathematics, 2018, 4, pp.39-58
Article dans une revue hal-01469488v1
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T-coercivity for the homogenization of sign-changing coefficients scalar problems with extreme contrasts

Renata Bunoiu , Karim Ramdani , Claudia Timofte
Mathematical Reports, In press, Marius Tucsnak 60th Anniversary Volume, 24(74) (1-2)
Article dans une revue hal-03481978v2
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Reconstructing initial data using observers: error analysis of the semi-discrete and fully discrete approximations

Ghislain Haine , Karim Ramdani
Numerische Mathematik, 2012, 120 (2), pp.307-343. ⟨10.1007/s00211-011-0408-x⟩
Article dans une revue hal-00730512v1
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Observateurs itératifs en horizon fini. Application à la reconstruction de données initiales pour des EDP d'évolution

Ghislain Haine , Karim Ramdani
Journal Européen des Systèmes Automatisés (JESA), 2011, 45 (7-10), pp.715-724. ⟨10.3166/jesa.45.715-724⟩
Article dans une revue hal-00730518v1

Computational Methods for Multiple Scattering at High Frequency with Applications to Periodic Structures Calculations.

Xavier Antoine , Christophe Geuzaine , Karim Ramdani
Wave Propagation in Periodic Media, Bentham, pp.73-107, 2010, Progress in Computational Physics, Vol. 1
Chapitre d'ouvrage hal-00511341v1