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Mehdi Sohrabi haghighat

Mehdi Sohrabi haghighat

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0001-5430-9159
Education: PhD.
ScopusId: 57074880700
Faculty: Science
Address: Arak University
Phone:

Research

Title
THE TRICYCLIC GRAPHS WITH THE EXTREMUM ZEROTH-ORDER GENERAL RANDIC INDEX
Type
JournalPaper
Keywords
Tricyclic graph; Randic index; Zeroth-order General Randic index
Year
2015
Journal Science International-Lahore
DOI
Researchers Sirwan Vaisipour ، Mehdi Sohrabi haghighat

Abstract

A (n, n+2)-graph G is a connected simple graph with n vertices and n + 2 edges. If dv denotes the degree of the vertex v, then the zeroth-order general Randic index of the graph G is defined as R(G, a))=Sum(d(v),a), where α is a real number. We characterize, for any α, the (n, n+2)-graphs with the extremum (minimum for 0 < α < 1 and maximum for α < 0 or α > 1) zeroth-order general Randic index of (n, n + 2)-graphs.