Investigation of Zagreb indices and Zagreb coindices of line graphs implementing subdivision process.

A topological index is a numerical measure characterizing a whole structure of a particularly given graph. Moreover, in chemical graph theory, the Zagreb indices idea, which is based on the number of vertex degrees, was proposed. More Zagreb index variations were later created, and some of these indexes were recently produced. This paper outlines the Zagreb indices and Zagreb coindices with respect to the line graphs of Polyphenylene dendrimer subdivision graphs. Numerous creative families of Zagreb indices were also numerically simulated, comparing the two types of indices that can be relevant with respect to the quantitative structure-activity relationship (QSAR) as well as quantitative structure-property relationships (QSPR) research. [ABSTRACT FROM AUTHOR]