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Undirected power graphs of semigroups

✍ Scribed by Ivy Chakrabarty; Shamik Ghosh; M. K. Sen

Publisher: Springer
Year: 2009
Tongue: English
Weight: 440 KB
Volume: 78
Category: Article
ISSN: 0037-1912
DOI: 10.1007/s00233-008-9132-y

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AwwzucT : Necessary and su@cient conditions are given for a set of non-negative integers to be the degreea of vertices of an n-vertex undirected graph. The conditions and their proof are based on a novel decomposition procedure which gives some inkght in& the structure to he realized, and leads to a