%0 Journal Article
%T Median and Center of Zero-Divisor Graph of Commutative Semigroups
%J Iranian Journal of Mathematical Sciences and Informatics
%V 3
%N 2
%U http://ijmsi.ir/article-1-52-en.html
%R 10.7508/ijmsi.2008.02.007
%D 2008
%K Commutative semigroup, Zero-divisor graph, Center of a graph, Median of a graph.,
%X For a commutative semigroup S with 0, the zero-divisor graph of S denoted by &Gamma(S) is the graph whose vertices are nonzero zero-divisor of S, and two vertices x, y are adjacent in case xy = 0 in S. In this paper we study median and center of this graph. Also we show that if Ass(S) has more than two elements, then the girth of &Gamma(S) is three.
%> http://ijmsi.ir/article-1-52-en.pdf
%P 69-76
%& 69
%!
%9 Research paper
%L A-10-1-50
%+
%G eng
%@ 1735-4463
%[ 2008