Accéder directement au contenu

Ignasi Sau

40
Documents
Identifiants chercheurs

Présentation

See also : <http://www.lirmm.fr/~sau/Pubs.html>

Publications

43303
Image document

Reducing the vertex cover number via edge contractions

Paloma Thomé de Lima , Vinicius F. dos Santos , Ignasi Sau , Uéverton dos Santos Souza , Prafullkumar Tale
Journal of Computer and System Sciences, 2023, 136, pp.63-87. ⟨10.1016/j.jcss.2023.03.003⟩
Article dans une revue lirmm-04107607v1
Image document

k-apices of minor-closed graph classes. I. Bounding the obstructions

Ignasi Sau , Giannos Stamoulis , Dimitrios M. Thilikos
Journal of Combinatorial Theory, Series B, 2023, 161, pp.180-227. ⟨10.1016/j.jctb.2023.02.012⟩
Article dans une revue lirmm-04028310v1
Image document

Target set selection with maximum activation time

Lucas Keiler , Carlos Vinicius Gomes Costa Lima , Ana Karolinna Maia , Rudini Sampaio , Ignasi Sau
Discrete Applied Mathematics, 2023, 338, pp.199-217. ⟨10.1016/j.dam.2023.06.004⟩
Article dans une revue lirmm-04140763v1
Image document

Hitting Minors on Bounded Treewidth Graphs. IV. An Optimal Algorithm

Julien Baste , Ignasi Sau , Dimitrios M. Thilikos
SIAM Journal on Computing, 2023, 52 (4), pp.865-912. ⟨10.1137/21M140482X⟩
Article dans une revue lirmm-04171495v1
Image document

Parameterized Complexity of Computing Maximum Minimal Blocking and Hitting Sets

Júlio Araújo , Marin Bougeret , Victor Campos , Ignasi Sau
Algorithmica, 2023, 85 (2), pp.444-491. ⟨10.1007/s00453-022-01036-5⟩
Article dans une revue lirmm-04028295v1
Image document

k-apices of Minor-closed Graph Classes. II. Parameterized Algorithms

Ignasi Sau , Giannos Stamoulis , Dimitrios M. Thilikos
ACM Transactions on Algorithms, 2022, 18 (3), pp.1-30. ⟨10.1145/3519028⟩
Article dans une revue hal-03835923v1
Image document

Introducing lop-Kernels: A Framework for Kernelization Lower Bounds

Júlio Araújo , Marin Bougeret , Victor Campos , Ignasi Sau
Algorithmica, 2022, 84 (11), pp.3365-3406. ⟨10.1007/s00453-022-00979-z⟩
Article dans une revue lirmm-03991247v1
Image document

A relaxation of the Directed Disjoint Paths problem: A global congestion metric helps

Raul Lopes , Ignasi Sau
Theoretical Computer Science, 2022, 898, pp.75-91. ⟨10.1016/j.tcs.2021.10.023⟩
Article dans une revue lirmm-03772271v1
Image document

Adapting the Directed Grid Theorem into an FPT Algorithm

Victor Campos , Raul Lopes , Ana Karolinna Maia , Ignasi Sau
SIAM Journal on Discrete Mathematics, 2022, 36 (3), pp.1887-1917. ⟨10.1137/21m1452664⟩
Article dans une revue lirmm-04028302v1
Image document

Bridge-Depth Characterizes which Minor-Closed Structural Parameterizations of Vertex Cover Admit a Polynomial Kernel

Marin Bougeret , Bart M P Jansen , Ignasi Sau
SIAM Journal on Discrete Mathematics, 2022, 36 (4), pp.2737-2773. ⟨10.1137/21m1400766⟩
Article dans une revue lirmm-04028294v1
Image document

Hitting forbidden induced subgraphs on bounded treewidth graphs

Ignasi Sau , Uéverton dos Santos Souza
Information and Computation, 2021, 281, pp.104812. ⟨10.1016/j.ic.2021.104812⟩
Article dans une revue lirmm-03772257v1
Image document

Coloring Problems on Bipartite Graphs of Small Diameter

Victor A Campos , Guilherme C.M. Gomes , Allen Ibiapina , Raul Lopes , Ignasi Sau
The Electronic Journal of Combinatorics, 2021, 28 (2), pp.#P2.14. ⟨10.37236/9931⟩
Article dans une revue lirmm-03374527v1
Image document

On the complexity of finding large odd induced subgraphs and odd colorings

Rémy Belmonte , Ignasi Sau
Algorithmica, 2021, 83 (8), pp.2351-2373. ⟨10.1007/s00453-021-00830-x⟩
Article dans une revue lirmm-03374591v1
Image document

Reducing graph transversals via edge contractions

Paloma T Lima , Vinicius F dos Santos , Ignasi Sau , Uéverton S Souza
Journal of Computer and System Sciences, 2021, 120, pp.62-74. ⟨10.1016/j.jcss.2021.03.003⟩
Article dans une revue lirmm-03374537v1
Image document

Target set selection with maximum activation time

Lucas Keiler , Carlos V.G.C. Lima , Ana Karolinna Maia , Rudini Sampaio , Ignasi Sau
Procedia Computer Science, 2021, 195, pp.86-96. ⟨10.1016/j.procs.2021.11.014⟩
Article dans une revue lirmm-03772657v1
Image document

A Unifying Model for Locally Constrained Spanning Tree Problems

Luiz Alberto Do Carmo Viana , Manoel Campêlo , Ignasi Sau , Ana Silva
Journal of Combinatorial Optimization, 2021, 42 (1), pp.125-150. ⟨10.1007/s10878-021-00740-2⟩
Article dans une revue lirmm-03374555v1
Image document

Finding Cuts of Bounded Degree

Guilherme C M Gomes , Ignasi Sau
Algorithmica, 2021, 83 (6), pp.1677-1706. ⟨10.1007/s00453-021-00798-8⟩
Article dans une revue lirmm-03374542v1
Image document

Hitting Minors on Bounded Treewidth Graphs. I. General Upper Bounds

Julien Baste , Ignasi Sau , Dimitrios M. Thilikos
SIAM Journal on Discrete Mathematics, 2020, 34 (3), pp.1623-1648. ⟨10.1137/19M1287146⟩
Article dans une revue lirmm-02989921v1
Image document

Parameterized complexity of finding a spanning tree with minimum reload cost diameter

Julien Baste , Didem Gözüpek , Christophe Paul , Ignasi Sau , Mordechai Shalom
Networks, 2020, 75 (3), pp.259-277. ⟨10.1002/net.21923⟩
Article dans une revue lirmm-02989889v1
Image document

Hitting minors on bounded treewidth graphs. II. Single-exponential algorithms

Julien Baste , Ignasi Sau , Dimitrios M. Thilikos
Theoretical Computer Science, 2020, 814, pp.135-152. ⟨10.1016/j.tcs.2020.01.026⟩
Article dans une revue lirmm-02989928v1
Image document

Dual Parameterization of Weighted Coloring

Júlio Araújo , Victor A Campos , Carlos Vinícius G. C. Lima , Vinícius Fernandes dos Santos , Ignasi Sau
Algorithmica, 2020, 82 (8), pp.2316-2336. ⟨10.1007/s00453-020-00686-7⟩
Article dans une revue lirmm-02989870v1
Image document

Hitting minors on bounded treewidth graphs. III. Lower bounds

Julien Baste , Ignasi Sau , Dimitrios M. Thilikos
Journal of Computer and System Sciences, 2020, 109, pp.56-77. ⟨10.1016/j.jcss.2019.11.002⟩
Article dans une revue lirmm-02989938v1
Image document

Weighted proper orientations of trees and graphs of bounded treewidth

Julio Araujo , Cláudia Linhares Sales , Ignasi Sau , Ana Silva
Theoretical Computer Science, 2019, 771, pp.39-48. ⟨10.1016/j.tcs.2018.11.013⟩
Article dans une revue lirmm-02410622v1
Image document

Approximating maximum uniquely restricted matchings in bipartite graphs

Julien Baste , Dieter Rautenbach , Ignasi Sau
Discrete Applied Mathematics, 2019, 267, pp.30-40. ⟨10.1016/j.dam.2019.04.024⟩
Article dans une revue lirmm-02410617v1
Image document

Upper bounds on the uniquely restricted chromatic index

Julien Baste , Dieter Rautenbach , Ignasi Sau
Journal of Graph Theory, 2019, 91 (3), pp.251-258. ⟨10.1002/jgt.22429⟩
Article dans une revue lirmm-02412578v1
Image document

Adapting The Directed Grid Theorem into an FPT Algorithm

Victor Campos , Raul Lopes , Ana Karolinna Maia de Oliviera , Ignasi Sau
Electronic Notes in Theoretical Computer Science, 2019, 346, pp.229-240. ⟨10.1016/j.entcs.2019.08.021⟩
Article dans une revue lirmm-02410620v1
Image document

Counting Gallai 3-colorings of complete graphs

Josefran de Oliveira Bastos , Fabrício Siqueira Benevides , Guilherme Oliveira Mota , Ignasi Sau
Discrete Mathematics, 2019, 342 (9), pp.2618-2631. ⟨10.1016/j.disc.2019.05.015⟩
Article dans une revue lirmm-02410619v1
Image document

How Much Does a Treedepth Modulator Help to Obtain Polynomial Kernels Beyond Sparse Graphs?

Marin Bougeret , Ignasi Sau
Algorithmica, 2019, 81 (10), pp.4043-4068. ⟨10.1007/s00453-018-0468-8⟩
Article dans une revue lirmm-02410618v1
Image document

Compound Logics for Modification Problems

Fedor V. Fomin , Petr A. Golovach , Ignasi Sau , Giannos Stamoulis , Dimitrios M. Thilikos
ICALP 2023 - 50th International Colloquium on Automata, Languages and Programming, Jul 2023, Paderborn, Germany. pp.1-21, ⟨10.4230/LIPIcs.ICALP.2023.51⟩
Communication dans un congrès lirmm-04253801v1
Image document

Faster parameterized algorithms for modification problems to minor-closed classes

Laure Morelle , Ignasi Sau , Giannos Stamoulis , Dimitrios M. Thilikos
ICALP 2023 - 50th International Colloquium on Automata, Languages and Programming, Jul 2023, Paderborn, Germany. pp.93:1-93:19, ⟨10.4230/LIPIcs.ICALP.2023.93⟩
Communication dans un congrès lirmm-04253814v1
Image document

Reducing the Vertex Cover Number via Edge Contraction

Paloma T. Lima , Vinicius Fernandes dos Santos , Ignasi Sau , Uéverton dos Santos Souza , Prafullkumar Tale
MFCS 2022 - 47th International Symposium on Mathematical Foundations of Computer Science, Aug 2022, Vienna, Austria. pp.69:1-69:14, ⟨10.4230/LIPIcs.MFCS.2022.69⟩
Communication dans un congrès lirmm-03772619v1
Image document

A New Framework for Kernelization Lower Bounds: The Case of Maximum Minimal Vertex Cover

Júlio Araújo , Marin Bougeret , Victor Campos , Ignasi Sau
IPEC 2021 - 16th International Symposium on Parameterized and Exact Computation, Sep 2021, Virtual, Portugal. pp.4:1-4:19, ⟨10.4230/LIPIcs.IPEC.2021.4⟩
Communication dans un congrès lirmm-03526704v1
Image document

Hitting Forbidden Induced Subgraphs on Bounded Treewidth Graphs

Ignasi Sau , Uéverton dos Santos Souza
MFCS 2020 - 45th International Symposium on Mathematical Foundations of Computer Science, Aug 2020, Prague, Czech Republic. pp.82:1-82:15, ⟨10.4230/LIPIcs.MFCS.2020.82⟩
Communication dans un congrès lirmm-02991913v1
Image document

A Relaxation of the Directed Disjoint Paths Problem: A Global Congestion Metric Helps

Raul Lopes , Ignasi Sau
MFCS 2020 - 45th International Symposium on Mathematical Foundations of Computer Science, Aug 2020, Prague, Czech Republic. pp.68:1-68:15, ⟨10.4230/LIPIcs.MFCS.2020.68⟩
Communication dans un congrès lirmm-02991855v1
Image document

Reducing Graph Transversals via Edge Contractions

Paloma T. Lima , Vinicius Fernandes dos Santos , Ignasi Sau , Uéverton dos Santos Souza
MFCS 2020 - 45th International Symposium on Mathematical Foundations of Computer Science, Aug 2020, Prague, Czech Republic. pp.64:1-64:15, ⟨10.4230/LIPIcs.MFCS.2020.64⟩
Communication dans un congrès lirmm-02991812v1
Image document

Bridge-Depth Characterizes Which Structural Parameterizations of Vertex Cover Admit a Polynomial Kernel

Marin Bougeret , Bart M P Jansen , Ignasi Sau
ICALP 2020 - 47th International Colloquium on Automata, Languages, and Programming, Jul 2020, Saarbrücken, Germany. pp.16:1--16:19, ⟨10.4230/LIPIcs.ICALP.2020.16⟩
Communication dans un congrès lirmm-02991230v1
Image document

An FPT-Algorithm for Recognizing k-Apices of Minor-Closed Graph Classes

Ignasi Sau , Giannos Stamoulis , Dimitrios M. Thilikos
ICALP 2020 - 47th International Colloquium on Automata, Languages, and Programming, Jul 2020, Saarbrücken, Germany. pp.95:1-95:20, ⟨10.4230/LIPIcs.ICALP.2020.95⟩
Communication dans un congrès lirmm-02991704v1
Image document

On the complexity of finding large odd induced subgraphs and odd colorings

Rémy Belmonte , Ignasi Sau
WG 2020 - 46th International Workshop on Graph-Theoretic Concepts in Computer Science, Jun 2020, Leeds, United Kingdom. pp.67-79, ⟨10.1007/978-3-030-60440-0_6⟩
Communication dans un congrès lirmm-02991977v1
Image document

Dual parameterization of Weighted Coloring

Julio Araujo , Victor Campos , Carlos Vinícius G. C. Lima , Vinicius Fernandes dos Santos , Ignasi Sau
IPEC 2018 - 13th International Symposium on Parameterized and Exact Computation, Aug 2018, Helsinki, Finland. pp.12:1--12:14, ⟨10.4230/LIPIcs.IPEC.2018.12⟩
Communication dans un congrès lirmm-02410739v1
Image document

A Complexity Dichotomy for Hitting Small Planar Minors Parameterized by Treewidth

Julien Baste , Ignasi Sau , Dimitrios M. Thilikos
IPEC 2018 - 13th International Symposium on Parameterized and Exact Computation, Aug 2018, Helsinki, Finland. pp.2:1--2:13, ⟨10.4230/LIPIcs.IPEC.2018.2⟩
Communication dans un congrès lirmm-02342806v1