On Harmonious Coloring of Middle Graph ofOn Harmonious Coloring of Middle Graph of C(C_n), C(K_{1,n}) and C(P_n)


In this paper, we present the structural properties of middle graph of central graph of cycles C_n, star graphs K_{1,n} and paths P_n denoted by M(C(C_n)), M(C(K_{1,n})) and M(C(P_n)) respectively. We mainly have our discussion on the harmonious chromatic number of M(C(C_n)), M(C(K_{1,n})) and M(C(P_n)).

DOI Code: 10.1285/i15900932v29n2p201

central graph; middle graph; harmonious coloring

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