Simple Graphs and Zero-divisor Semigroups
In this paper, we provide examples of graphs which uniquely determine a zero-divisor semigroup. We show two classes of graphs that have no corresponding semigroups. Especially, we prove that no complete r-partite graph together with two or more end vertices (each linked to distinct vertices) has corresponding semigroups.
2006 ◽
Vol 34
(8)
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pp. 3043-3052
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2012 ◽
Vol 2
(1)
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pp. 35
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2020 ◽
Vol 9
(12)
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pp. 10591-10612
2020 ◽
Vol 9
(8)
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pp. 5901-5908
2020 ◽
Vol 0
(0)
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1982 ◽
Vol 26
(6)
◽
pp. 503-507
Keyword(s):