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Minimum general sum-connectivity index of unicyclic graphs (CROSBI ID 171552)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Du, Zhibin ; Zhou, Bo ; Trinajstić, Nenad Minimum general sum-connectivity index of unicyclic graphs // Journal of mathematical chemistry, 48 (2010), 3; 697-703. doi: 10.1007/s10910-010-9702-6

Podaci o odgovornosti

Du, Zhibin ; Zhou, Bo ; Trinajstić, Nenad

engleski

Minimum general sum-connectivity index of unicyclic graphs

The general sum-connectivity index of a graph G is defined as X alpha(G) = Sigma edges (d(u) + d(v))(alpha), where d(u) denotes the degree of vertex u in G and a is alpha real number. In this report, we determine the minimum and the second minimum values of the general sum-connectivity indices of n-vertex unicyclic graphs for non-zero alpha >= -1, and characterize the corresponding extremal graphs.

General Randic connectivity index; General product-connectivity index; General sum-connectivity index; Properties

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Podaci o izdanju

48 (3)

2010.

697-703

objavljeno

0259-9791

10.1007/s10910-010-9702-6

Povezanost rada

Kemija, Matematika

Poveznice
Indeksiranost