Endomorphisms of graphs. II: Various unretractive graphs
In this part of the article [part I, cf. the review above] graphs are investigated, for which different endomorphism monoids coincide. Here endomorphisms, strong endomorphisms and automorphisms are considered. Coincidences are investigated for joins and lexicographic products of graphs. There are lists of graphs with the respective properties up to 8 vertices in two cases and up to 5 vertices in the remaining case.
scientific article; zbMATH DE number 4118399