Endomorphisms of graphs II. Various unretractive graphs |
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| Authors: | Ulrich Knauer |
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| Affiliation: | (1) Present address: Fachbereich Mathematik, Universität Oldenburg, Carl-von-Ossietzky-Straße, D-2900 Oldenburg |
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| Abstract: | In this part of the article we investigate graphs for which different endomorphism monoids coincide. We consider endomorphisms, strong endomorphisms and automorphisms. Coincidences are investigated for joins of graphs and some lexicographic products. In an additional section the graphs with the respective properties are listed up to 8 vertices in two cases and up to 5 vertices in the remaining case. |
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