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Volume :41 Issue : 1 2014
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Omega and related polynomials of polyomino chains of 4 k-cycles
Auther : MEHDI ALAEIYAN, ALIREZA GILANI, RASOUL MOJARAD AND JAFAR ASADPOUR
ABSTRACT
Omega polynomial of a graph G is defined, on the ground of "opposite edge strips" ops: where is the number of ops strips of length . The Sadhana polynomial can also be calculated by ops counting. In this paper we compute these polynomials for polyomino chains of 4 -cycles. Also by using Omega polynomial we can compute the (edge) PI polynomial for this graph.
Keywords: Omega polynomial; sadhana polynomial; PI polynomial; strips; polyomino chain.