Ignasi Sau
Présentation
See also : http://www.lirmm.fr/~sau/Pubs.html
Publications
Publications
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Parameterizing the quantification of CMSO: model checking on minor-closed graph classesSODA 2025 - 36th Annual ACM-SIAM Symposium on Discrete Algorithms, Jan 2025, New Orleans, United States. pp.403-445, ⟨10.1137/1.9781611978322.12⟩ |
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Computing Distances on Graph Associahedra Is Fixed-Parameter TractableICALP 2025 - 52nd International Colloquium on Automata, Languages and Programming, Jul 2025, Aarhus, Denmark. pp.63:1-63:19, ⟨10.4230/LIPIcs.ICALP.2025.63⟩ |
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Revisiting Directed Disjoint Paths on Tournaments (And Relatives)ICALP 2025 - 52nd International Colloquium on Automata, Languages and Programming, Jul 2025, Aarhus, Denmark. pp.90:1-90:20, ⟨10.4230/LIPIcs.ICALP.2025.90⟩ |
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Kernelization Dichotomies for Hitting Subgraphs Under Structural ParameterizationsICALP 2024 - 51st International Colloquium on Automata, Languages, and Programming, Jul 2024, Tallinn, Estonia. pp.33:1-33:20, ⟨10.4230/LIPIcs.ICALP.2024.33⟩ |
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On the Complexity of the Median and Closest Permutation ProblemsWABI 2024 - 24th International Workshop on Algorithms in Bioinformatics, Sep 2024, Egham, Surrey, United Kingdom. pp.2:1-2:23, ⟨10.4230/LIPIcs.WABI.2024.2⟩ |
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Faster parameterized algorithms for modification problems to minor-closed classesICALP 2023 - 50th International Colloquium on Automata, Languages and Programming, Jul 2023, Paderborn, Germany. pp.93:1-93:19, ⟨10.4230/LIPIcs.ICALP.2023.93⟩ |
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New Menger-Like Dualities in Digraphs and Applications to Half-Integral LinkagesESA 2023 - 31st Annual European Symposium on Algorithms, Sep 2023, Amsterdam, Netherlands. pp.30:1-30:18, ⟨10.4230/LIPIcs.ESA.2023.30⟩ |
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Compound Logics for Modification ProblemsICALP 2023 - 50th International Colloquium on Automata, Languages and Programming, Jul 2023, Paderborn, Germany. pp.61:1-61:21, ⟨10.4230/LIPIcs.ICALP.2023.61⟩ |
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Dynamic programming on bipartite tree decompositionsIPEC 2023 - 18th International Symposium on Parameterized and Exact Computation, Sep 2023, Amsterdam, Netherlands. pp.16:1-16:22, ⟨10.4230/LIPIcs.IPEC.2023.26⟩ |
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Reducing the Vertex Cover Number via Edge ContractionMFCS 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⟩ |
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A New Framework for Kernelization Lower Bounds: The Case of Maximum Minimal Vertex CoverIPEC 2021 - 16th International Symposium on Parameterized and Exact Computation, Sep 2021, Virtual, Portugal. pp.4:1-4:19, ⟨10.4230/LIPIcs.IPEC.2021.4⟩ |
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On the complexity of finding large odd induced subgraphs and odd coloringsWG 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⟩ |
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Bridge-Depth Characterizes Which Structural Parameterizations of Vertex Cover Admit a Polynomial KernelICALP 2020 - 47th International Colloquium on Automata, Languages, and Programming, Jul 2020, Saarbrücken, Germany. pp.16:1--16:19, ⟨10.4230/LIPIcs.ICALP.2020.16⟩ |
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Reducing Graph Transversals via Edge ContractionsMFCS 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⟩ |
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A Relaxation of the Directed Disjoint Paths Problem: A Global Congestion Metric HelpsMFCS 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⟩ |
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A complexity dichotomy for hitting connected minors on bounded treewidth graphs: the chair and the banner draw the boundarySODA 2020 - 31st ACM/SIAM Symposium on Discrete Algorithms, Jan 2020, Salt Lake City, UT, United States. pp.951-970, ⟨10.1137/1.9781611975994.57⟩ |
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An FPT-Algorithm for Recognizing k-Apices of Minor-Closed Graph ClassesICALP 2020 - 47th International Colloquium on Automata, Languages, and Programming, Jul 2020, Saarbrücken, Germany. pp.95:1-95:20, ⟨10.4230/LIPIcs.ICALP.2020.95⟩ |
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Hitting Forbidden Induced Subgraphs on Bounded Treewidth GraphsMFCS 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⟩ |
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A Complexity Dichotomy for Hitting Small Planar Minors Parameterized by TreewidthIPEC 2018 - 13th International Symposium on Parameterized and Exact Computation, Aug 2018, Helsinki, Finland. pp.2:1--2:13, ⟨10.4230/LIPIcs.IPEC.2018.2⟩ |
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Dual parameterization of Weighted ColoringIPEC 2018 - 13th International Symposium on Parameterized and Exact Computation, Aug 2018, Helsinki, Finland. pp.12:1--12:14, ⟨10.4230/LIPIcs.IPEC.2018.12⟩ |
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Finding Cuts of Bounded Degree: Complexity, FPT and Exact Algorithms, and KernelizationIPEC 2019 - 14th International Symposium on Parameterized and Exact Computation, Sep 2019, Munich, Germany. pp.19:1--19:15, ⟨10.4230/LIPIcs.IPEC.2019.19⟩ |
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Optimal Algorithms for Hitting (Topological) Minors on Graphs of Bounded TreewidthIPEC 2017 - 12th International Symposium on Parameterized and Exact Computation, Sep 2017, Vienna, Austria. pp.4:1--4:12, ⟨10.4230/LIPIcs.IPEC.2017.4⟩ |
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How much does a treedepth modulator help to obtain polynomial kernels beyond sparse graphs?IPEC 2017 - 12th International Symposium on Parameterized and Exact Computation, Sep 2017, Vienne, Austria. pp.10:1--10:13, ⟨10.4230/LIPIcs.IPEC.2017.10⟩ |
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On the complexity of finding internally vertex-disjoint long directed pathsLATIN 2018 - 13th Latin American Symposium on Theoretical Informatics, Apr 2018, Buenos Aires, Argentina. pp.66-79, ⟨10.1007/978-3-319-77404-6_6⟩ |
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Parameterized Complexity of Finding a Spanning Tree with Minimum Reload Cost DiameterIPEC 2017 - 12th International Symposium on Parameterized and Exact Computation, Sep 2017, Vienna, Austria. pp.3:1--3:12, ⟨10.4230/LIPIcs.IPEC.2017.3⟩ |
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Complexity Dichotomies for the Minimum $F$-Overlay Problem28th International Workshop on Combinatorial Algorithms (IWOCA), Jul 2017, Newcastle, Australia. pp.116-127, ⟨10.1007/978-3-319-78825-8_10⟩ |
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On the Number of Labeled Graphs of Bounded TreewidthWG 2017 - 43rd International Workshop on Graph-Theoretic Concepts in Computer Science, Jun 2017, Eindhoven, Netherlands. pp.88-99, ⟨10.1007/978-3-319-68705-6_7⟩ |
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Uniquely Restricted Matchings and Edge ColoringsWG 2017 - 43rd International Workshop on Graph-Theoretic Concepts in Computer Science, Jun 2017, Eindhoven, Netherlands. pp.100-112, ⟨10.1007/978-3-319-68705-6_8⟩ |
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An $O(log OPT)$-Approximation for Covering/Packing Minor Models of $θ _r$WAOA 2015 - 13th International Workshop on Approximation and Online Algorithms, Sep 2015, Patras, Greece. pp.122-132, ⟨10.1007/978-3-319-28684-6_11⟩ |
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On the (Parameterized) Complexity of Recognizing Well-Covered $(r,l)$-graphsCOCOA: Conference on Combinatorial Optimization and Applications, Dec 2016, Hong Kong, China. pp.423-437, ⟨10.1007/978-3-319-48749-6_31⟩ |
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Efficient FPT Algorithms for (Strict) Compatibility of Unrooted Phylogenetic TreesAAIM: Algorithmic Aspects in Information and Management, Jul 2016, Bergamo, Italy. pp.53-64, ⟨10.1007/978-3-319-41168-2_5⟩ |
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Parameterized Complexity of the MINCCA Problem on Graphs of Bounded DecomposabilityWG 2016 - 42nd International Workshop on Graph-Theoretic Concepts in Computer Science, Jun 2016, Istanbul, Turkey. pp.195-206, ⟨10.1007/978-3-662-53536-3_17⟩ |
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An FPT 2-Approximation for Tree-cut DecompositionWAOA 2015 - 13th International Workshop on Approximation and Online Algorithms, Sep 2015, Patras, Greece. pp.35-46, ⟨10.1007/978-3-319-28684-6_4⟩ |
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Parameterized Algorithms for Min-Max Multiway Cut and List Digraph HomomorphismIPEC 2015 - 10th International Symposium on Parameterized and Exact Computation, Sep 2015, Patras, Greece. pp.78-89, ⟨10.4230/LIPIcs.IPEC.2015.78⟩ |
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A Polynomial-Time Algorithm for Outerplanar Diameter ImprovementCSR: Computer Science in Russia, Jul 2015, Listvyanka, Russia. pp.123-142, ⟨10.1007/978-3-319-20297-6_9⟩ |
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Covering and packing pumpkin modelsICGT: International Colloquium on Graph Theory and combinatorics, Jun 2014, Grenoble, France |
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Parameterized domination in circle graphsWG 2012 - 38th International Workshop on Graph Theoretic-Concepts in Computer Science, Jun 2012, Jerusalem, Israel. pp.45-72, ⟨10.1007/s00224-013-9478-8⟩ |
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The role of planarity in connectivity problems parameterized by treewidthIPEC 2014 - 9th International Symposium on Parameterized and Exact Computation, Sep 2014, Wroclaw, Poland. pp.63-74, ⟨10.1007/978-3-319-13524-3_6⟩ |
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Explicit linear kernels via dynamic programmingSTACS 2014 - 31st International Symposium on Theoretical Aspects of Computer Science, Mar 2014, Lyon, France. pp.312-324, ⟨10.4230/LIPIcs.STACS.2014.312⟩ |
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An edge variant of the Erdős-Pósa propertyICGT: International Colloquium on Graph Theory and combinatorics, Jun 2014, Grenoble, France |
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Linear Kernels and Single-exponential Algorithms via Protrusion DecompositionsICALP: International Colloquium on Automata, Languages and Programming, Jul 2013, Riga, Latvia. pp.613-624, ⟨10.1007/978-3-642-39206-1_52⟩ |
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A linear kernel for planar red-blue dominating setCTW: Cologne-Twente Workshop on Graphs and Combinatorial Optimization, May 2013, Enschede, Netherlands. pp.117-120 |
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Dynamic Programming for $H$-minor-free GraphsCOCOON: Computing and Combinatorics Conference, Aug 2012, Sydney, NSW, Australia. pp.86-97, ⟨10.1007/978-3-642-32241-9_8⟩ |
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Hitting and Harvesting PumpkinsESA 2011 - 19th Annual European Symposium on Algorithms, Sep 2011, Saarbrücken, Germany. pp.394-407, ⟨10.1007/978-3-642-23719-5_34⟩ |
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On Approximating the $d$-Girth of a GraphSOFSEM, Jan 2011, Nový Smokovec, Slovakia. pp.467-481, ⟨10.1007/978-3-642-18381-2_39⟩ |
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Fast Minor Testing in Planar GraphsESA 2010 - 18th Annual European Symposium on Algorithms, Sep 2010, Liverpool, United Kingdom. pp.97-109, ⟨10.1007/978-3-642-15775-2_9⟩ |
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The Recognition of Tolerance and Bounded Tolerance Graphs27th International Symposium on Theoretical Aspects of Computer Science - STACS 2010, Inria Nancy Grand Est & Loria, Mar 2010, Nancy, France. pp.585-596 |
Dynamic programming for graphs on surfacesICALP: International Colloquium on Automata, Languages and Programming, 2010, Bordeaux, France. pp.372-383 |
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Edge-Simple Circuits Through 10 Ordered Vertices in Square GridsInternational Workshop on Combinatorial Algorithms -- IWOCA, Jun 2009, Hradec nad Moravicì, Czech Republic |
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Hardness of Approximating the Traffic Grooming Problem9ème Rencontres Francophones sur les Aspects Algorithmiques des Télécommunications, May 2007, Ile d'Oléron, France. pp.45-48 |
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Traffic Grooming in Bidirectional WDM Ring NetworksInternational Conference on Transparent Optical Networks (ICTON), Jun 2006, Nottingham, United Kingdom. pp.19 - 22, ⟨10.1109/ICTON.2006.248390⟩ |
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Graph-Theoretic Concepts in Computer Science - 45th International Workshop, WG 2019, Vall de Núria, Spain, June 19-21, 2019, Revised PapersLNCS (11789), 2019, 978-3-030-30785-1. ⟨10.1007/978-3-030-30786-8⟩ |
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Traffic Grooming: Combinatorial Results and Practical Resolutions.Arie Koster and Xavier Muñoz. Graphs and Algorithms in Communication Networks: Studies in Broadband, Optical, Wireless, and Ad Hoc Networks., XXVII, Springer, pp.63-94, 2010, EATCS Texts in Theoretical Computer Science, 978-3-642-02249-4. ⟨10.1007/978-3-642-02250-0⟩ |
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Improved kernels for Signed Max Cut parameterized above lower bound on (r,l)-graphs2016 |
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On the complexity of computing the $k$-restricted edge-connectivity of a graph2016 |
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Parameterized complexity dichotomy for $(r,\ell)$-Vertex Deletion2016 |
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Parameterized Algorithms for Min-Max Multiway Cut and List Digraph Homomorphism[Research Report] LIRMM. 2015 |
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An FPT 2-Approximation for Tree-Cut Decomposition[Research Report] LIRMM. 2015 |
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Complexity Dichotomies for the Minimum F-Overlay Problem[Research Report] RR-9045, Inria Sophia Antipolis. 2013, pp.16 |
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Dynamic Programming for Graphs on Surfaces[Research Report] RR-7166, INRIA. 2009, pp.39 |
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GMPLS Routing Strategies based on the Design of Hypergraph Layouts[Research Report] RR-6842, INRIA. 2009 |
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Drop cost and wavelength optimal two-period grooming with ratio 4[Research Report] RR-7101, INRIA. 2009, pp.24 |
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MPLS label stacking on the line network[Research Report] RR-6803, INRIA. 2009 |
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Circuit visiting 10 ordered vertices in infinite grids[Research Report] RR-6910, INRIA. 2009 |
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Hardness and Approximation of Traffic Grooming[Research Report] RR-6236, INRIA. 2007, pp.17 |
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Parameterized Complexity of the Smallest Degree Constraint Subgraph Problem[Research Report] RR-6237, INRIA. 2007, pp.20 |
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Optimization in Graphs under Degree Constraints. Application to Telecommunication NetworksMathematics [math]. Université Nice Sophia Antipolis; Universitat Politécnica de Catalunya, 2009. English. ⟨NNT : ⟩ |
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Some Contributions to Parameterized ComplexityComputer Science [cs]. Université de Montpellier, 2018 |