Results 111 to 120 of about 461 (137)

Bounding the Mostar index

open access: yesDiscrete Mathematics
Došlić et al. defined the Mostar index of a graph $G$ as $Mo(G)=\sum\limits_{uv\in E(G)}|n_G(u,v)-n_G(v,u)|$, where, for an edge $uv$ of $G$, the term $n_G(u,v)$ denotes the number of vertices of $G$ that have a smaller distance in $G$ to $u$ than to $v$. They conjectured that $Mo(G)\leq 0.\overline{148}n^3$ for every graph $G$ of order $n$.
Johannes Pardey, Dieter Rautenbach
exaly   +3 more sources

ON MOSTAR INDEX OF GRAPHS

Advances in Mathematics: Scientific Journal, 2021
On the great success of bond-additive topological indices like Szeged, Padmakar-Ivan, Zagreb, and irregularity measures, yet another index, the Mostar index, has been introduced recently as a peripherality measure in molecular graphs and networks. For a connected graph G, the Mostar index is defined as $$M_{o}(G)=\displaystyle{\sum\limits_{e=gh\epsilon
P. Kandan, S. Subramanian
openaire   +1 more source

On the Difference of Mostar Index and Irregularity of Graphs

Bulletin of the Malaysian Mathematical Sciences Society, 2020
For a connected graph the irregularity irr (G) are G, the Mostar index Mo(G) and defined as Mo(G) = uv∈E(G) |n u − n v | and irr (G) = uv∈E(G) |d u − d v |, respec- tively, where d u is the degree of the vertex u of G and n u denotes the number of vertices of G which are closer to u than to v for an edge uv.
Fang Gao, Kexiang Xu, Tomislav Doslic
exaly   +3 more sources

Extremal bicyclic graphs with respect to Mostar index

Applied Mathematics and Computation, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aleksandra Tepeh
exaly   +2 more sources

Mostar index

Journal of mathematical chemistry, 2018
We propose and investigate a new bond-additive structural invariant as a measure of peripherality in graphs. We first determine its extremal values and characterize extremal trees and unicyclic graphs. Then we show how it can be efficiently computed for large classes of chemically interesting graphs using a variant of the cut method introduced by Klav ...
Došlić, Tomislav   +2 more
openaire   +3 more sources

Mostar index and bounded maximum degree

open access: yesDiscrete Optimization
Došlić et al. defined the Mostar index of a graph $G$ as $Mo(G)=\sum\limits_{uv\in E(G)}|n_G(u,v)-n_G(v,u)|$, where, for an edge $uv$ of $G$, the term $n_G(u,v)$ denotes the number of vertices of $G$ that have a smaller distance in $G$ to $u$ than to $v$.
Michael A Henning   +2 more
exaly   +4 more sources

Extremal phenylene chains with respect to the Mostar index

Discrete Mathematics, Algorithms and Applications, 2021
For a connected graph [Formula: see text], the Mostar index is defined as [Formula: see text], where [Formula: see text] (respectively, [Formula: see text]) is the number of vertices of [Formula: see text] closer to [Formula: see text] (respectively, [Formula: see text]) than [Formula: see text] (respectively, [Formula: see text]).
Hanlin Chen   +3 more
openaire   +2 more sources

Extremal catacondensed benzenoids with respect to the Mostar index

Journal of Mathematical Chemistry, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kecai Deng, Shuchao Li, Deng Kecai
exaly   +2 more sources

On the extremal values for the Mostar index of trees with given degree sequence

Applied Mathematics and Computation, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kecai Deng, Shuchao Li
exaly   +3 more sources

The Mostar index of Tribonacci cubes

Discrete Mathematics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Min Niu
exaly   +3 more sources

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