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cs.CC2026
W[1]-Hardness of Upper Clique Transversal
J. Pascal Gollin, Pascal J. Gollin, Tesshu Hanaka +3
A clique transversal of a graph is a set of vertices intersecting every maximal clique. We prove that deciding whether a graph has an inclusion-wise minimal clique transversal of s…
cs.CC2023
Treewidth is NP-Complete on Cubic Graphs (and related results)
Hans L. Bodlaender, Édouard Bonnet, Lars Jaffke +6
In this paper, we give a very simple proof that Treewidth is NP-complete; this proof also shows NP-completeness on the class of co-bipartite graphs. We then improve the result by B…