Results 291 to 300 of about 23,816 (337)

Topological indices and their mathematical expressions.

open access: green
Yeliz Kara (21395459)   +4 more
openalex   +1 more source

Some new topological indices of silicate network via M-polynomial

open access: yesJournal of Discrete Mathematical Sciences and Cryptography, 2020
The numerical encoding of chemical structure with topological indices is currently growing in chemical graph theory. An important aspect of these topological indices related with the prediction of the characteristic given by the chemical structure of the
Murat Cancan   +2 more
exaly   +2 more sources

On topological charge indices of graphs

2023
Summary: We introduce a fast method of computing the topological charge indices of simple graphs (molecules) which does not require matrices of large sizes. For the case of trees, we give a compact formula and in the general case we obtain upper and lower bounds for the charge indices.
Shahryari, Mohammad   +1 more
openaire   +2 more sources

On topological indices of fullerenes

Applied Mathematics and Computation, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Martin Baca   +3 more
openaire   +2 more sources

Complementary Topological Indices

Match Communications in Mathematical and in Computer Chemistry
An edge of a graph can be geometrically represented by points (dr, ds) and (ds,dr) in a 2D coordinate system, where coordinates are, obviously, the degrees of the edge’s end-vertices. Recently, using such a geometrical point of view of a graph edge, a couple of topological invariants were put forward.
Boris Furtula, Mert Sinan Oz
openaire   +1 more source

The physical meaning of topological indices

Computers & Chemistry, 1991
Abstract A handicap in using topological indices for QSAR is the lack of adequate provisions for specifying the nature of graph vertices (i.e. accounting for heteroatoms) or of graph edges (i.e. accounting for multiple bonds). Analysis of seven topological indices (i.e.
Jan K. Labanowski   +2 more
openaire   +1 more source

Some topological indices in fuzzy graphs

Journal of Intelligent & Fuzzy Systems, 2019
A fuzzy graph is one of the versatile application tools in the field of mathematics, which allows the user to easily describe the fuzzy relation between any objects. The nature of fuzziness is favorable for any environment, which supports to predict the problem and solving it.
Shriram Kalathian   +3 more
openaire   +1 more source

On the topological indices and graph operation

Discrete Mathematics, Algorithms and Applications
As we know that some chemically interesting graphs can be obtained by different graph operations on some general or particular graphs, it is important to study such graph operations in order to understand how it is related to the corresponding topological indices of the original graphs. In [A. Miličević, A. Nikolić and S.
Hajar Shooshtari   +2 more
openaire   +2 more sources

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