Results 191 to 200 of about 73,809 (233)

Augmented Zagreb index

Journal of Mathematical Chemistry, 2010
Inspired by recent work on the atom-bond connectivity (ABC) index we proposed a new topological index, augmented Zagreb index (AZI). The tight upper and lower bounds of AZI for chemical trees are obtained. Moreover, it has been shown that among all trees the star has the minumum AZI value.
Furtula, Boris, Graovac, Ante, Vukičević, Damir   +2 more
openaire   +3 more sources

CMMSE-on the first general Zagreb index

Journal of Mathematical Chemistry, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
José M. Rodríguez, José L. Sánchez, José M. Sigarreta   +2 more
openaire   +4 more sources

FRACTAL VERSION OF ZAGREB ECCENTRICITY INDEX

Fractals, 2023
In this paper, we introduce the fractal version of Zagreb eccentricity index which is a singular integral of the eccentricity squared in terms of self-similar measure. Based on the geometric characteristics of the farthest point, we calculate the fractal version of Zagreb eccentricity index on the (3,1) flower fractal to be [Formula: see text] by ...
JIAJUN XU, YING LU, LIFENG XI
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On reduced second Zagreb index

Journal of Combinatorial Optimization, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lkhagva Buyantogtokh, Batmend Horoldagva, Kinkar Chandra Das   +2 more
openaire   +1 more source

THE THIRD VERSION OF ZAGREB INDEX

Discrete Mathematics, Algorithms and Applications, 2013
Gutman et al. defined the Zagreb indices for the first time more than 40 years ago and up to now many versions of these topological indices were defined. In this paper we define a type of Zagreb indices based on degrees of neighbors of vertices in a given graph and then we compute them for several classes of composite graphs.
Ghorbani, Modjtaba, Hosseinzadeh, Mohammad A.   +1 more
openaire   +2 more sources