S. Z. Aghamohammadi
Department of Mathematics, Eslamshahr Branch, Islamic Azad University, Tehran, Iran.
[ 1 ] - On computing the general Narumi-Katayama index of some graphs
The Narumi-Katayama index was the first topological index defined by the product of some graph theoretical quantities. Let $G$ be a simple graph with vertex set $V = {v_1,ldots, v_n }$ and $d(v)$ be the degree of vertex $v$ in the graph $G$. The Narumi-Katayama index is defined as $NK(G) = prod_{vin V}d(v)$. In this paper, the Narumi-Katayama index is generalized using a $n$-ve...
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