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Published in:   Vol. 4 Issue 2 Date of Publication:   December 2015

Saturation Index of π(D(r,s))

S.P.Subbiah,J.Chithra

Page(s):   59-62 ISSN:   2278-2397
DOI:    10.20894/IJCOA.101.004.002.002 Publisher:   Integrated Intelligent Research (IIR)

Adin and Roichman introduced the concept of permutation graphs and Peter Keevash, Po-Shen Loh and Benny Sudakov identified some permutation graphs with maximum number of edges. Ryuhei Uehara, Gabriel Valiente, discussed on Linear structure of Bipartite Permutation Graphs and the Longest Path Problem. If i, j belongs to a permutation on p symbols {1, 2, , p} and i is less than j then there is an edge between i and j in the permutation graph if i appears after j in the sequence of permutation. So the line of i crosses the line of j in the permutation. Hence there is a one to one correspondence between crossing of lines in the permutation and the edges of the corresponding permutation graph. In this paper we found the conditions for a permutation to realize a double star and comprehend the algorithm to determine the satuation index of the permutation.AMS Subject Classification (2010): 05C35, 05C69, 20B30.