LACEABILITY PROPERTIES IN EDGE TOLERANT CORONA PRODUCT GRAPHS

LACEABILITY PROPERTIES IN EDGE TOLERANT CORONA PRODUCT GRAPHS

P. Gomathi, R. Murali

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Abstract

A connected graph G is termed Hamiltonian-t-laceable if there exists in it a Hamiltonian path between every pair of vertices u and v with the property d(u; v) = t , 1  t  diam(G), where t is a positive integer. The corona product of G and H, denoted by GoH is obtained by taking one copy of G called the center graph, jV (G)j copies of H called the outer graph and taking the i th vertex of G adjacent to every vertex of the ith copy of H where 1  i  jV(G)j. In this paper, we establish laceability properties in the edge tolerant corona product graph KnoPm.

Keywords

Hamiltonian graph, Hamiltonian laceable graph, Hamiltonian-t-laceable graph, Corona graph.