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Ars Combinatoria

  • Research article

A New Version for Co-PI Index of a Graph

Guifu Su1,2
1School of Mathematics, Beijing Institute of Technology Beijing, 100081, P. R. China
2Department of Mathematics, Changji University Xinjiang, 836046, P. R. China
  • Published: 31/07/2016

Abstract

The \(Co-PI\) index have been introduced by Hasani et al. recently. In this paper, we present a new version for the \(Co-PI\) index, and the Cartesian product, Corona product and join of graphs under this new index are computed.

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Citation
Guifu Su. A New Version for Co-PI Index of a Graph[J], Ars Combinatoria, Volume 127. 279-292. .