The eccentric connectivity index based on degree and eccentricity of the vertices of a graph is a widely used graph invariant in mathematics. In this paper we present the explicit generalized expressions for the eccentric connectivity index and polynomial of the thorn graphs, and then consider some particular cases.
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机译:allocution de monsieur Gaston E. Thorn,de la Commission of Communautes europeennes a la remise du doctorat honoris causa a monsieur Le president Gaston E. Thorn par l'Universite de Urbino。乌尔比诺,1983年7月17日=委员会主席Gaston E. Thorn先生在接受乌尔比诺大学荣誉博士学位时的讲话。乌尔比诺,1983年9月17日