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math.AC2013
On reduced zero-divisor graphs of posets
Ashish Kumar Das, Deiborlang Nongsiang
In this paper we study some of the basic properties of a graph which is constructed from the equivalence classes of non-zero zero-divisors determined by annihilator ideals of a pos…
math.GR2013
On the genus of the commuting graphs of finite non-abelian groups
Ashish Kumar Das, Deiborlang Nongsiang
The commuting graph of a non-abelian group is a simple graph in which the vertices are the non-central elements of the group, and two distinct vertices are adjacent if and only if…