Web of Science (Emerging Sources Citation Index), ISC

Document Type : Original Research Article


1 National university of Science and Technology, Islamabad.

2 Department of Mathematics and Statistics, The University of Lahore, 54000, Lahore Pakistan

3 Faculty of Education, Van Yuzuncu Yıl University, Van, Turkey

4 Van Yuzuncu Yil University

5 Department of Math. and Stat., The university of Lahore, Pakistan.

6 Department of Applied Mathematics, Iran University of Science and Technology (IUST),Narmak,Tehran 16844, Iran.



Graph entropy associated with the graph, first considered by K ̈orner [1]. Graph entropy has been used extensively to characterize the structure of graph-based systems in mathematical chemistry. In these applications the entropy of a graph is interpreted as its structural information content and serves as a complexity measure. The aim of this report is by using the calculated values of topological indices, degree weighted entropy of graph, the entropy measures are calculated viz., symmetric division index, inverse sum index atom-bond connectivity entropy and geometric arithmetic entropy for the nanotube HAC5C7[p,q].

Graphical Abstract

Degree-based entropy of molecular structure of HAC5C7[p,q]


Main Subjects