Authors: Mansoureh Deldar, Mehdi Alaeiyan
Abstract
Let $G$ be a graph with vertex set $V(G)$ and edge set $E(G)$. The first and second
multiplicative Zagreb co-indices are defined as: $$ {\overline{\prod}}_1(G)={\prod}_{uv\notin
E(G)}[d_G(u)+d_G(v)]~,~{\overline{\prod}}_2(G)={\prod}_{uv\notin E(G)}[d_G(u)d_G(v)],
$$ respectively, where $d_G(u)$ is the degree of the vertex $u$ of $G$. The aim of this
paper is to investigate the multiplicative Zagreb co-indices of the subdivision graphs of
tadpole graphs and wheel graphs
Department of Mathematics
Karaj Branch, Islamic Azad University
Karaj, Iran.
E-mail: ,
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