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Some observations on sombor coindex of graphs | ||
| Communications in Combinatorics and Optimization | ||
| مقاله 15، دوره 9، شماره 4، اسفند 2024، صفحه 813-825 اصل مقاله (386.54 K) | ||
| نوع مقاله: Short notes | ||
| شناسه دیجیتال (DOI): 10.22049/cco.2023.28762.1707 | ||
| نویسندگان | ||
| E. Milovanović؛ S. Stankov؛ M. Matejić؛ I. Milovanović* | ||
| Faculty of Electronic Engineering, University of Niš, Niš, Serbia | ||
| چکیده | ||
| Let $G=(V,E)$, $V=\left\{ v_{1},v_{2},\ldots ,v_{n}\right\}$, be a simple graph of order $n$ and size $m$, without isolated vertices. The Sombor coindex of a graph $G$ is defined as $\overline{SO}(G)=\sum_{i\nsim j}\sqrt{d_i^2+d_j^2}$ , where $d_i= d(v_i)$ is a degree of vertex $v_i$, $i=1,2,\ldots , n$. In this paper we investigate a relationship between Sombor coindex and a number of other topological coindices. | ||
| کلیدواژهها | ||
| Topological indices؛ coindices؛ Sombor coindex | ||
| مراجع | ||
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