Abstract:The vertex-deleted subgraph G − v, obtained from the graph G by deleting the vertex v and all edges incident to v, is called a card of G. The deck of G is the multiset of its unlabelled cards. The number of common cards b(G, H) of G and H is the cardinality of the multiset intersection of the decks of G and H. A supercard G + of G and H is a graph whose deck contains at least one card isomorphic to G and at least one card isomorphic to H. We show how maximum sets of common cards of G and H correspond to certai… Show more
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