Sharp Upper Bounds for Multiplicative Zagreb Indices
نویسندگان
چکیده
For a (molecular) graph, the multiplicative Zagreb indices ∏ 1-index and ∏ 2index are multiplicative versions of the ordinary Zagreb indices (M1-index and M2index). In this note we report several sharp upper bounds for ∏ 1-index in terms of graph parameters including the order, size, radius, Wiener index and eccentric distance sum, and upper bounds for ∏ 2-index in terms of graph parameters including the order, size, the first Zagreb index, the first Zagreb coindex and degree distance. ∗Corresponding author. E-mail address: [email protected] (Q. Zhang) MATCH Communications in Mathematical and in Computer Chemistry MATCH Commun. Math. Comput. Chem. 68 (2012) 231-240
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