Padmakar–Ivan index
id:
padmakar-ivan-index-259-7501615
title:
Padmakar–Ivan index
text:
In chemical graph theory, the Padmakar–Ivan (PI) index is a topological index of a molecule, used in biochemistry. The Padmakar–Ivan index is a generalization introduced by Padmakar V. Khadikar and Iván Gutman of the concept of the Wiener index, introduced by Harry Wiener. The Padmakar–Ivan index of a graph G is the sum over all edges uv of G of number of edges which are not equidistant from u and v.
Let G be a graph and e = uv an edge of G. Here n e u denotes the number of edges lying closer to
brand slug:
wiki
category slug:
encyclopedia
description:
Concept in chemistry
original url:
https://en.wikipedia.org/wiki/Padmakar%E2%80%93Ivan_index
date created:
date modified:
2022-05-25T19:21:56Z
main entity:
{"identifier":"Q56291683","url":"https://www.wikidata.org/entity/Q56291683"}
image:
fields total:
13
integrity:
14