Results 221 to 230 of about 16,596 (251)
Some of the next articles are maybe not open access.
From Wiener Index to Molecules
Journal of Chemical Information and Modeling, 2005In this paper we present an algorithm for the generation of molecular graphs with a given value of the Wiener index. The high number of graphs for a given value of the Wiener index is reduced thanks to the application of a set of heuristics taking into account the structural characteristics of the molecules.
Gonzalo Cerruela García +4 more
openaire +2 more sources
Wiener index of sum of shadowgraphs
Discrete Mathematics, Algorithms and Applications, 2022The Wiener index of a graph [Formula: see text], denoted by [Formula: see text], is defined as [Formula: see text] where the sum is taken through all unordered pairs of vertices of [Formula: see text] and [Formula: see text] is distance between two vertices [Formula: see text] and [Formula: see text] of [Formula: see text]. Let [Formula: see text] and
Shanu Goyal +2 more
openaire +2 more sources
On Wiener and terminal Wiener index of graphs
International Journal of Biomathematics, 2015The Wiener index is a topological index defined as the sum of distances between all pairs of vertices in a graph. It was introduced as a structural descriptor for molecular graphs of alkanes, which are trees with vertex degrees of four at the most. The terminal Wiener index is defined as the sum of distances between all pairs of pendent vertices in a ...
Babujee, J. Baskar, Senbagamalar, J.
openaire +2 more sources
Wiener polarity index of dendrimers
Applied Mathematics and Computation, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guoliang Liu, Guodong Liu
openaire +2 more sources
On Wiener index and Wiener polarity index of some polyomino chains
Journal of Discrete Mathematical Sciences and Cryptography, 2019AbstractA graph invariant is a numerical value that depicts the structural properties of an entire graph.
Muhammad Imran +2 more
exaly +3 more sources
On the Wiener polarity index of graphs
Applied Mathematics and Computation, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hongbo Hua, Kinkar Chandra Das
openaire +2 more sources
The Overall Hyper-Wiener Index
Journal of Mathematical Chemistry, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, X. H., Lin, J. J.
openaire +2 more sources
Modification of the Wiener index 4
Journal of Computational Chemistry, 2004AbstractA novel topological index WF is defined by the matrices X, W, and L as WF = XWL. Where L is a column vector expressing the characteristic of vertices in the molecule; X is a row vector expressing the bonding characteristics between adjacent atoms; W is a reciprocal distance matrix.
Feng Yang +2 more
openaire +2 more sources
Bond Contributions to the Wiener Index
Journal of Chemical Information and Computer Sciences, 1995The Wiener index W(G) of a (molecular) graph G with vertex set V(G) = { 1, ..., n } is defined as the sum of distances between all pairs of distinct vertices i j , 1 I i < j I n.1-3 The original motivation to consider this quantity was an observation by Wiener’ that boiling points of paraffins correlate very strongly with this quantity.
Martin Juvan, Bojan Mohar
openaire +1 more source
On the Terminal Wiener index of networks
2016 5th International Conference on Multimedia Computing and Systems (ICMCS), 2016Finding quantitative measures for describing and characterizing the structural properties of networks is a research topic with ongoing interest. These measures are called graph invariants and are usually referred to as topological indices. The oldest topological index is the Wiener index, it has been extensively studied in many applications such as ...
Meryam Zeryouh +2 more
openaire +1 more source

