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The Wiener index of a connected graph is defined as the sum of the distances between all unordered pair of its vertices. In this paper, we characterize the graphs which extremize the Wiener index among all graphs on $n$ vertices with $k$…

Combinatorics · Mathematics 2019-08-01 Dinesh Pandey , Kamal Lochan Patra

The Wiener index is defined as the sum of distances between all unordered pairs of vertices in a graph. It is one of the most recognized and well-researched topological indices, which is on the other hand still a very active area of…

Combinatorics · Mathematics 2023-03-22 Martin Knor , Riste Škrekovski , Aleksandra Tepeh

The distance of a vertex in a graph is the sum of distances from that vertex to all other vertices of the graph. The Wiener index of a graph is the sum of distances between all its unordered pairs of vertices. A graph has been obtained that…

Combinatorics · Mathematics 2024-07-16 Dinesh Pandey

The Wiener index of a graph is the sum of the distances between all pairs of vertices, it has been one of the main descriptors that correlate achemical compound's molecular graph with experimentally gathered data regarding the compound's…

Combinatorics · Mathematics 2007-09-12 Hua Wang

The Wiener index of a connected graph is the sum of the distances between all pairs of vertices in the graph. It was conjectured that the Wiener index of an $n$-vertex maximal planar graph is at most $\lfloor\frac{1}{18}(n^3+3n^2)\rfloor$.…

Combinatorics · Mathematics 2019-12-09 Debarun Ghosh , Ervin Győri , Addisu Paulos , Nika Salia , Oscar Zamora

The Wiener index (i.e., the total distance or the transmission number), defined as the sum of distances between all unordered pairs of vertices in a graph, is one of the most popular molecular descriptors. In this article we summarize some…

Combinatorics · Mathematics 2015-10-06 Martin Knor , Riste Škrekovski , Aleksandra Tepeh

The Wiener index of a (hyper)graph is calculated by summing up the distances between all pairs of vertices. We determine the maximum possible Wiener index of a connected $n$-vertex $k$-uniform hypergraph and characterize for every~$n$ all…

Combinatorics · Mathematics 2023-02-20 Stijn Cambie , Ervin Győri , Nika Salia , Casey Tompkins , James Tuite

The Wiener index of a graph is the sum of all the distances between any pair of vertices. We aim to describe graphs which minimize the Wiener index among all unicyclic graphs with fixed girth and given degree sequence. Depending on where…

Combinatorics · Mathematics 2024-10-29 Alewyn P. Burger , Valisoa R. M. Rakotonarivo

The Wiener index of a connected graph is the sum of topological distances between all pairs of vertices. Since Wang gave a mistake result on the maximum Wiener index for given tree degree sequence, in this paper, we investigate the maximum…

Combinatorics · Mathematics 2009-07-23 Xiao-Dong Zhang , Yong Liu , Min-Xian Han

Wiener index, defined as the sum of distances between all unordered pairs of vertices, is one of the most popular molecular descriptors. It is well known that among 2-vertex connected graphs on $n\ge 3$ vertices, the cycle $C_n$ attains the…

Discrete Mathematics · Computer Science 2019-05-14 Stéphane Bessy , François Dross , Martin Knor , Riste Škrekovski

The Wiener index of a finite graph G is the sum over all pairs (p, q) of vertices of G of the distance between p and q. When P is a finite poset, we define its Wiener index as the Wiener index of the graph of its Hasse diagram. In this…

Combinatorics · Mathematics 2023-04-14 Colin Defant , Valentin Féray , Philippe Nadeau , Nathan Williams

The Wiener index of a connected graph is the sum of the distance of all pairs of distinct vertices. It was introduced by Wiener in 1947 to analyze some aspects of branching by fitting experimental data for several properties of alkane…

Combinatorics · Mathematics 2020-01-10 Peter Luo , Cun-Quan Zhang , Xiao-Dong Zhang

The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices. We provide formulae for the minimum Wiener index of simple triangulations and quadrangulations with connectivity at least $c$, and…

Combinatorics · Mathematics 2021-12-23 Éva Czabarka , Trevor Olsen , Stephen Smith , László A. Székely

The Wiener index (the distance) of a connected graph is the sum of distances between all pairs of vertices. In this paper, we study the maximum possible value of this invariant among graphs on $n$ vertices with fixed number of blocks $p$.…

Discrete Mathematics · Computer Science 2019-05-08 Stéphane Bessy , François Dross , Katarína Hriňáková , Martin Knor , Riste Škrekovski

The Wiener polarity index of a graph is defined as the number of unordered pairs of vertices at distance three. In recent years, this topological index was extensively studied since it has many known applications in chemistry and also in…

Combinatorics · Mathematics 2019-04-09 Niko Tratnik

The Wiener index of a graph, which is the sum of the distances between all pairs of vertices, has been well studied. Recently, Sills and Wang in 2012 proposed two conjectures on the maximal Wiener index of trees with a given degree…

Combinatorics · Mathematics 2013-04-04 Ya-Lei Jin , Xiao-Dong Zhang

Given a simple connected undirected graph G, the Wiener index W(G) of G is defined as half the sum of the distances over all pairs of vertices of G. In practice, G corresponds to what is known as the molecular graph of an organic compound.…

Discrete Mathematics · Computer Science 2010-12-13 R. Balakrishnan , N. Sridharan , K. V. Iyer

The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices. A connected graph is Eulerian if its vertex degrees are all even. In [Gutman, Cruz, Rada, Wiener index of Eulerian Graphs, Discrete…

Combinatorics · Mathematics 2021-01-22 Peter Dankelmann

The Wiener index of a graph $G$, denoted $W(G)$, is the sum of the distances between all pairs of vertices in $G$. \'E. Czabarka, et al. conjectured that for an $n$-vertex, $n\geq 4$, simple quadrangulation graph $G$,…

Combinatorics · Mathematics 2020-01-06 Ervin Győri , Addisu Paulos , Chuanqi Xiao

Let $G$ be a a connected graph. The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices. We provide asymptotic formulae for the maximum Wiener index of simple triangulations and…

Combinatorics · Mathematics 2023-06-22 Éva Czabarka , Peter Dankelmann , Trevor Olsen , László A. Székely
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