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On the Cartesian product of non well-covered graphs

2012/04/30 by Hartnell, Bert L., Rall, Douglas F.
#05C69 #05C76 #Combinatorics (math.CO) #Discrete Mathematics (cs.DM) #FOS: Computer and information sciences #FOS: Mathematics

paper · doi:10.48550/arxiv.1204.6681

Abstract

A graph is well-covered if every maximal independent set has the same cardinality, namely the vertex independence number. We answer a question of Topp and Volkmann and prove that if the Cartesian product of two graphs is well-covered, then at least one of them must be well-covered.

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