The Bounds of Vertex Padmakar–Ivan Index on <i>k</i>-Trees
The Padmakar–Ivan (<inline-formula> <math display="inline"> <semantics> <mrow> <mi>P</mi> <mi>I</mi> </mrow> </semantics> </math> </inline-formula>) index is a distance-based topological index and a molecular...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2019-04-01
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Series: | Mathematics |
Subjects: | |
Online Access: | https://www.mdpi.com/2227-7390/7/4/324 |