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Cancellation Properties Of Direct Products Of Digraphs, Katherine Toman
Cancellation Properties Of Direct Products Of Digraphs, Katherine Toman
Theses and Dissertations
This paper discusses the direct product cancellation of digraphs. We define the exact conditions on G such that GxK=HxK implies G=H. We focus first on simple equations such as GxK_2=HxK_2 where K_2 denotes a single arc and then extend this to the more general situation, GxK = HxK. Our results are achieved by using a “factorial” operation on graphs, which is in some sense analogous to the factorial of an integer.