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On Split B1-EPG Graphs

Deniz, Zakir ; Nivelle, Simon ; Ries, Bernard ; Schindl, David

In: Lecture Notes in Computer Science, 2018, vol. 10807, p. 361-375

We consider the following problem: can a certain graph parameter of some given graph G be reduced by at least d, for some integer d, via at most k graph operations from some specified set S, for some given integer k? As graph parameters we take the chromatic number and the clique number. We let the set S consist of either an edge contraction or a vertex deletion. As all these problems are...