Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
MUHAMMAD IMRAN1,* , SAKANDER HAYAT1, MUHAMMAD KASHIF SHAFIQ2
A numeric quantity which characterizes the whole structure of a graph is called a topological index. The concept of Randi ć (H) , atom-bond connectivity (ABC) and geometric-arithmetic (GA) topological indices were established in chemical graph theory based on vertex degrees. Later on, other versions of ABC and GA indices were introduced and some of the versions of these indices are recently designed. Dendrimers are recognized as one of the major commercially available nanoscale building blocks, large and complex molecules with well defined chemical structure. The nanostar dendrimer is a part of a new group of macroparticles that appear to be photon funnels just like artificial antennas. A k -polyomino system is a finite 2 -connected plane graph such that each interior face (also called cell) is surrounded by a regular 4k -cycle of length one. In this article, we compute ABC , GA, and Randić indices of two important families of nanostar dendrimers. We also compute fourth version of atom-bond connectivity ( ) 4 ABC index and fifth version of geometric-arithmetic ( ) 5 GA index for graphs of 1 and 2 -polyomino chains of 8 -cycles..
Randić index, Atom-bond connectivity (ABC) index, Geometric-arithmetic (GA) index, 4 ABC index, 5 GA index, Nanostar dendrimers, k -polyomino system.
MUHAMMAD IMRAN, SAKANDER HAYAT, MUHAMMAD KASHIF SHAFIQ, On topological indices of nanostar dendrimers and polyomino chains, Optoelectronics and Advanced Materials - Rapid Communications, 8, 9-10, September-October 2014, pp.948-954 (2014).
Submitted at: June 25, 2014
Accepted at: Sept. 11, 2014
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.