TY - GEN
T1 - Model Checking Disjoint-Paths Logic on Topological-Minor-Free Graph Classes
AU - Schirrmacher, Nicole
AU - Siebertz, Sebastian
AU - Stamoulis, Giannos
AU - Thilikos, Dimitrios M.
AU - Vigny, Alexandre
N1 - Publisher Copyright:
© 2024 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.
PY - 2024/7/8
Y1 - 2024/7/8
N2 - Disjoint-paths logic, denoted FO+ DP, extends first-order logic (FO) with atomic predicates dpk[(x1, y1), ..., (xk, yk)], expressing the existence of internally vertex-disjoint paths between xi and yi, for 1 ≤ i ≤ k. We prove that for every graph class excluding some fixed graph as a topological minor, the model checking problem for FO+ DP is fixed-parameter tractable. This extends the model checking algorithm of Golovach et al. [SODA 2023] for FO+ DP for minor-closed graph classes. It also essentially settles the question of tractable model checking for this logic on subgraph-closed classes, since the problem is hard on subgraph-closed classes not excluding a topological minor (assuming a further mild condition on efficiency of encoding).
AB - Disjoint-paths logic, denoted FO+ DP, extends first-order logic (FO) with atomic predicates dpk[(x1, y1), ..., (xk, yk)], expressing the existence of internally vertex-disjoint paths between xi and yi, for 1 ≤ i ≤ k. We prove that for every graph class excluding some fixed graph as a topological minor, the model checking problem for FO+ DP is fixed-parameter tractable. This extends the model checking algorithm of Golovach et al. [SODA 2023] for FO+ DP for minor-closed graph classes. It also essentially settles the question of tractable model checking for this logic on subgraph-closed classes, since the problem is hard on subgraph-closed classes not excluding a topological minor (assuming a further mild condition on efficiency of encoding).
KW - disjoint paths
KW - first-order logic
KW - model checking
KW - parameterized algorithms
KW - topological-minor-free graphs
UR - http://www.scopus.com/inward/record.url?scp=85198153158&partnerID=8YFLogxK
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U2 - 10.1145/3661814.3662089
DO - 10.1145/3661814.3662089
M3 - Conference contribution
AN - SCOPUS:85198153158
T3 - Proceedings - Symposium on Logic in Computer Science
BT - Proceedings of the 39th Annual ACM/IEEE Symposium on Logic in Computer Science
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 39th Annual ACM/IEEE Symposium on Logic in Computer Science, LICS 2024
Y2 - 8 July 2024 through 11 July 2024
ER -