À propos de cet article
Publié en ligne: 04 févr. 2023
Pages: 302 - 315
Reçu: 07 janv. 2023
Accepté: 15 janv. 2023
DOI: https://doi.org/10.2478/ausi-2022-0017
Mots clés
© 2022 N. Feyza Yalçin, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The Nirmala matrix of a graph and its energy have recently defined. In this paper, we establish some features of the Nirmala eigenvalues. Then we propose various bounds on the Nirmala spectral radius and energy. Moreover, we derive a bound on the Nirmala energy including graph energy and maximum vertex degree.