On the general zeroth-order randić index of bargraphs

Suresh Elumalai, Toufik Mansour

Research output: Contribution to journalArticlepeer-review


In this paper, we study the bargraphs in the perspective of a well-known topological index, namely the general zeroth-order Randić index. More precisely, we show that the expected value of the general zeroth-order Randić index over all bargraphs with n cells isn3(3α+1 + 2α + 3 · 22α−1) when n is large enough, where α is a non-zero real number.

Original languageEnglish
Pages (from-to)6-9
Number of pages4
JournalDiscrete Mathematics Letters
StatePublished - 2019

Bibliographical note

Publisher Copyright:
© 2019 the authors.


  • Bargraphs
  • General first Zagreb index
  • General zeroth-order Randić index
  • Generating functions
  • Topological index

ASJC Scopus subject areas

  • Discrete Mathematics and Combinatorics


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