The comparison of two Zagreb-Fermat eccentricity indices
In this paper, we focus on comparing the first and second Zagreb-Fermat eccentricity indices of graphs. We show that [Formula: see text] holds for all acyclic and unicyclic graphs. Besides, we verify that the inequality may not be applied to graphs with at least two cycles.
Authors
- Longyu Li
- G. Li (ORCID: https://orcid.org/0000-0003-4228-5449)
- Cheng Zeng (ORCID: https://orcid.org/0000-0002-6630-4002)
- Xiangrui Pan
Institutions
- Shandong Institute of Business and Technology (CN)
Publication Details
- Journal
- Discrete Mathematics Algorithms and Applications
- Published
- 2025-06-27
- DOI
- https://doi.org/10.1142/s179383092550106x
- Primary Topic
- Advanced Mathematical Theories and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00