نتایج جستجو برای: multiple zagreb indices

تعداد نتایج: 837989  

Journal: :Ural mathematical journal 2023

The first and second Zagreb indices, since its inception have been subjected to an extensive research in the physio- chemical analysis of compounds. In [6] Hanyuan Deng et.al computed indices four new operations on a graph defined by M. Eliasi, B. Taeri [4]. Motivated from this we define operation graphs compute resultant graph. We illustrate results with some examples.

Journal: :Discrete Applied Mathematics 2018
Akbar Ali Darko Dimitrov

Many existing degree based topological indices can be clasified as bond incident degree (BID) indices, whose general form is BID(G) = ∑ uv∈E(G) Ψ(du, dv), where uv is the edge connecting the vertices u, v of the graph G, E(G) is the edge set of G, du is the degree of the vertex u and Ψ is a non-negative real valued (symmetric) function of du and dv. Here, it has been proven that if the extensio...

The chromatic number of a graph G, denoted by χ(G), is the minimum number of colors such that G can be colored with these colors in such a way that no two adjacent vertices have the same color. A clique in a graph is a set of mutually adjacent vertices. The maximum size of a clique in a graph G is called the clique number of G. The Turán graph Tn(k) is a complete k-partite graph whose partition...

Journal: :Carpathian Mathematical Publications 2016

Journal: :International Journal of Research in Advent Technology 2019

Journal: :Open Journal of Discrete Mathematics 2016

Journal: :Symmetry 2021

We obtain inequalities involving many topological indices in classical graph products by using the f-polynomial. In particular, we work with lexicographic product, Cartesian sum and first Zagreb, forgotten, inverse degree lordeg indices.

Journal: :Appl. Math. Lett. 2010
Lihua Feng Aleksandar Ilic

In this paper, we present sharp bounds for the Zagreb indices, Harary index and hyperWiener index of graphs with a given matching number, and we also completely determine the extremal graphs. © 2010 Elsevier Ltd. All rights reserved.

2016
Bommanahal Basavanagoud Shreekant Patil Dalibor Fronček

In this note, we obtain the expressions for multiplicative Zagreb indices and coindices of derived graphs such as a line graph, subdivision graph, vertex-semitotal graph, edge-semitotal graph, total graph and paraline graph.

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