Semigroups and their Zero-Divisor Graphs
Johnothon A. Sauer · OhioLink ETD Center (Ohio Library and Information Network) · 2009
III.3.aThe Subsemigroups Z 0 (S) and S \ Z 0 (S) IV.Extensions on the Results of DeMeyer and DeMeyer V.The Graphs on Six Vertices VI.Semigroups with Three or Four Non-Zero Zero Divisors VI.1 The Graphs on Three Vertices VI.2The Graphs on Four Vertices VII.Other Results VII.1 Zero-Divisor Graphs Based on Ideals VII.1.a.Congruences v VII.1.b