Algorithms and data structures for first-order logic with connectivity under vertex failures

M Pilipczuk, N Schirrmacher, S Siebertz… - arxiv preprint arxiv …, 2021 - arxiv.org
We introduce a new data structure for answering connectivity queries in undirected graphs
subject to batched vertex failures. Precisely, given any graph G and integer k, we can in …

[HTML][HTML] Measuring what matters: A hybrid approach to dynamic programming with treewidth

E Eiben, R Ganian, T Hamm, O Kwon - Journal of Computer and System …, 2021 - Elsevier
We develop a framework for applying treewidth-based dynamic programming on graphs
with “hybrid structure”, ie, with parts that may not have small treewidth but instead possess …

Deleting, Eliminating and Decomposing to Hereditary Classes Are All FPT-Equivalent∗

A Agrawal, L Kanesh, D Lokshtanov, F Panolan… - Proceedings of the 2022 …, 2022 - SIAM
Vertex-deletion problems have been at the heart of parameterized complexity throughout its
history. Here, the aim is to determine the minimum size (denoted by mod ℋ) of a modulator …

Parameterized complexity of elimination distance to first-order logic properties

FV Fomin, PA Golovach, DM Thilikos - ACM Transactions on …, 2022 - dl.acm.org
The elimination distance to some target graph property P is a general graph modification
parameter introduced by Bulian and Dawar. We initiate the study of elimination distances to …

[PDF][PDF] An FPT algorithm for elimination distance to bounded degree graphs

A Agrawal, L Kanesh, F Panolan… - … Aspects of Computer …, 2021 - drops.dagstuhl.de
In the literature on parameterized graph problems, there has been an increased effort in
recent years aimed at exploring novel notions of graph edit-distance that are more powerful …

FPT algorithms to compute the elimination distance to bipartite graphs and more

BMP Jansen, JJH de Kroon - … Workshop, WG 2021, Warsaw, Poland, June …, 2021 - Springer
For a hereditary graph class HH, the H H-elimination distance of a graph G is the minimum
number of rounds needed to reduce G to a member of HH by removing one vertex from each …

First-order logic with connectivity operators

N Schirrmacher, S Siebertz, A Vigny - ACM Transactions on …, 2023 - dl.acm.org
First-order logic (FO) can express many algorithmic problems on graphs, such as the
independent set and dominating set problem parameterized by solution size. However, FO …

Distance from triviality 2.0: Hybrid parameterizations

A Agrawal, MS Ramanujan - International Workshop on Combinatorial …, 2022 - Springer
Vertex deletion problems have been at the heart of numerous major advances in Algorithms
and Combinatorial Optimization, and especially so in the area of Parameterized Complexity …

Model-checking for first-order logic with disjoint paths predicates in proper minor-closed graph classes

PA Golovach, G Stamoulis, DM Thilikos - … of the 2023 Annual ACM-SIAM …, 2023 - SIAM
The disjoint paths logic, FOL+ DP, is an extension of First-Order Logic (FOL) with the extra
atomic predicate dp k (x 1, y 1,…, xk, yk), expressing the existence of internally vertex …

[PDF][PDF] On the parameterized complexity of clique elimination distance

A Agrawal, MS Ramanujan - 15th International Symposium on …, 2020 - drops.dagstuhl.de
Abstract Bulian and Dawar [Algorithmica, 2016] introduced the notion of elimination distance
in an effort to define new tractable parameterizations for graph problems and showed that …