2 citations · 2 across the 1 of their papers we have counts for
2 papers
math.RA2011★ 2 cited
On realizing zero-divisor graphs of po-semirings
Houyi Yu, Tongsuo Wu
In this paper, we determine bipartite graphs and complete graphs with horns, which are realizable as zero-divisor graphs of po-semirings. As applications, we classify commutative r…
math.RA2005
Simple Graphs and Commutative Zero-Divisor Semigroups
Tongsuo Wu, Li Chen
In this paper, we study commutative zero-divisor semigroups determined by graphs. We prove a uniqueness theorem for a class of graphs. We show two classes of graphs that have no co…