On Sum-Connectivity Index of Polyomino Chains
نویسندگان
چکیده
If G is a (molecular) graph with n vertices, and di is the degree of its i-th vertex, then the sum-connectivity index of G is the sum of the weights (du +dv)− 1 2 of all edges uv of G. A polyomino system is a finite 2-connected plane graph such that each interior face (or say a cell) is surrounded by a regular square of length one. Formulas for calculating the sum-connectivity index of polyomino chains are provided. Mathematics Subject Classification: 05C12, 05C05
منابع مشابه
A note on polyomino chains with extremum general sum-connectivity index
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