مرور Volume 4, Issue 4 بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 3 از 3
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Broadcast domination in Tori
(University of Isfahan, 2015-12-01)A broadcast on a graph $G$ is a function $f : V(G) rightarrow {0, 1,dots, diam(G)}$ such that for every vertex $v in V(G)$, $f(v) leq e(v)$, where $diam(G)$ is the diameter of $G$, and $e(v)$ is the ...
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A classification of finite groups with integral bi-Cayley graphs
(University of Isfahan, 2015-12-01)The bi-Cayley graph of a finite group $G$ with respect to a subset $Ssubseteq G$, which is denoted by $BCay(G,S)$, is the graph with vertex set $Gtimes{1,2}$ and edge set ${{(x,1), (sx,2)}mid xin G, sin S}$. ...
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On the harmonic index of graph operations
(University of Isfahan, 2015-12-01)The harmonic index of a connected graph $G$, denoted by $H(G)$, is defined as $H(G)=sum_{uvin E(G)}frac{2}{d_u+d_v}$ where $d_v$ is the degree of a vertex $v$ in G. In this paper, expressions for the Harary ...
