On the forgotten topological index of signed graphs

• Date: 2026
• Main Authors: Pirzada, Shariefuddin, Rashid, Mir Riyaz Ul
• Format: Article
• Language: English
• Published: Institute of Mathematics, NAS of Ukraine 2026
• Online Access: https://umj.imath.kiev.ua/index.php/umj/article/view/8298
• Journal Title: Ukrains’kyi Matematychnyi Zhurnal

UDC 519.17 The forgotten topological index denoted by $F(G)$ of a graph $G=(V,E)$ is defined as follows:  $F(G)=\displaystyle\sum\nolimits_{i=1}^{n}\!d_v^3,$ where $d_v$ denotes the degree of the vertex $v.$ We extend the notion of forgotten topological index to signed graphs and  introduce the $MS$...