Croatica Chemica Acta, Vol. 94 No. 2, 2021.
Short communication, Note
https://doi.org/10.5562/cca3813
On ve-Degree Irregularity Indices
Abdulgani Şahin
orcid.org/0000-0002-9446-7431
; Agri Ibrahim Cecen University, Faculty of Science and Letters, Department of Mathematics, 04100, Ağrı, Turkey
Abstract
In this paper, vertex-edge degrees (or simply, ve-degrees) of vertices in a graph are considered. The ve-degree of a vertex v in a graph equals to the number of different edges which are incident to a vertex from the closed neighborhood of v. The author introduces the ve-degree total irregularity index here and calculates this index for paths and double star graphs. Finally, the maximal trees are characterized with respect to the ve-degree total irregularity index.
Keywords
ve-degre; Albertson index; ve-degree irregularity; ve-degree total irregularity
Hrčak ID:
274418
URI
Publication date:
16.12.2021.
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