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The PI index of polyomino chains of 2k-cycles


R. MohammadyariM. R. Darafsheh


Abstract

creative_2013_22_1_081_086_abstract

The Padmakar-Ivan (PI) index of a graph G is the sum over all edges uv of G of the number of edges which are not equidistant from the vertices u and v. In this paper we compute the PI index of polyomino chains of 2k-cycles where k ≥ 2 and establish bounds for it.

Additional Information

Author(s)

Darafsheh, M., R., Mohammadyari, M., R.