on the general sum–connectivity co–index of graphs

نویسندگان

g. su

l. xu

چکیده

in this paper, a new molecular-structure descriptor, the general sum–connectivity co–index  is considered, which generalizes the first zagreb co–index and the general sum–connectivity index of graph theory. we mainly explore the lower and upper bounds in termsof the order and size for this new invariant. additionally, the nordhaus–gaddum–type resultis also represented.

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عنوان ژورنال:
iranian journal of mathematical chemistry

ناشر: university of kashan

ISSN 2228-6489

دوره 2

شماره Issue 1 (Special Issue on the Occasion of Mircea V. Diudea's Sixtieth Birthday) 2011

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