Please use this identifier to cite or link to this item:
https://scidar.kg.ac.rs/handle/123456789/10302
Title: | Vertex-degree-based topological indices of catacondensed hexagonal systems |
Authors: | Rada, Juan Cruz R. Gutman, Ivan |
Issue Date: | 2013 |
Abstract: | A number of vertex-degree-based topological indices (TIs) can be expressed as a linear combination of the parameters mij, the number of edges with end vertices of degree i and j. We study the TIs of catacondensed hexagonal systems. Specifically, we introduce two operations, linearizing and unbranching, and show that TI is monotone with respect to these. As a consequence, we express TI in terms of the number of angular and branched hexagons. The catacondensed hexagonal systems for which TI assumes extremal values are characterized, as well as their TI-values derived. © 2013 Elsevier B.V. All rights reserved. |
URI: | https://scidar.kg.ac.rs/handle/123456789/10302 |
Type: | article |
DOI: | 10.1016/j.cplett.2013.04.032 |
ISSN: | 0009-2614 |
SCOPUS: | 2-s2.0-84878114855 |
Appears in Collections: | Faculty of Science, Kragujevac |
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