Sahin, B.Ediz, S.2025-05-102025-05-1020182228-64892008-901510.22052/ijmc.2017.72666.1265https://doi.org/10.22052/ijmc.2017.72666.1265https://hdl.handle.net/20.500.14720/5926Sahin, Bunyamin/0000-0003-1094-5481Recently two new degree concepts have been defined in graph theory: ev-degree and ve-degree. Also the ev-degree and ve-degree Zagreb and Randie indices have been defined very recently as parallel of the classical definitions of Zagreb and Randie indices. It was shown that ev-degree and ve-degree topological indices can be used as possible tools in QSPR researches [2]. In this paper, we define the ve-degree and ev-degree Narumi-Katayama indices, investigate the predicting power of these novel indices and extremal graphs with respect to these novel topological indices. Also we give some basic mathematical properties of ev-degree and ve-degree Narumi-Katayama and Zagreb indices. (C) 2018 University of Kashan Press. All rights reservedeninfo:eu-repo/semantics/closedAccessEv-DegreeVe-DegreeEv-Degree Topological IndexVe-Degree Topological IndexArticle94N/AQ3263277WOS:000455513600003