Zobrazeno 1 - 10
of 854
pro vyhledávání: '"Hyper-Zagreb index"'
Autor:
Aliannejadi, Z., Alamoti, S. Shafiee
The paper discusses the edge hyper-Zagreb index of a graph, which is calculated by replacing vertex degrees with edge degrees. The degree of an edge is determined by adding up the degrees of the end vertices of the edge and subtracting 2. We examine
Externí odkaz:
http://arxiv.org/abs/2406.16916
Akademický článek
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Publikováno v:
Heliyon, Vol 10, Iss 16, Pp e36110- (2024)
The Zagreb indices (ZIs) are important graph invariants that are used extensively in many different fields in mathematics and chemistry, such as network theory, spectral graph theory, fuzzy graph theory (FGT) and molecular chemistry, etc. The hyper-Z
Externí odkaz:
https://doaj.org/article/6e8d25d1e6ce43bd959e53bf2853d000
Publikováno v:
Alexandria Engineering Journal, Vol 80, Iss , Pp 259-268 (2023)
Introduced by Gutman & Trinajstić in 1972, the two well-known Zagreb indices efficiently determine the total π-electron energy of alternant hydrocarbons. The hyper-Zagreb index is a variant of the classical first Zagreb index. A tree is an acyclic
Externí odkaz:
https://doaj.org/article/8b6f067b31514137a2205af00b5284f9
Akademický článek
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Autor:
Dehgardi, Nasrin1 (AUTHOR) n.dehgardi@sirjantech.ac.ir
Publikováno v:
Discrete Mathematics, Algorithms & Applications. Oct2024, p1. 14p.
Autor:
Rizwan, Muhammad1 (AUTHOR) L165514@lhr.nu.edu.pk, Shahab, Sana2 (AUTHOR) sshahab@pnu.edu.sa, Bhatti, Akhlaq Ahmad1 (AUTHOR) akhlaq.ahmad@nu.edu.pk, Javaid, Muhammad3 (AUTHOR) muhammad.javaid@umt.edu.pk, Anjum, Mohd4 (AUTHOR) mohdanjum@zhcet.ac.in
Publikováno v:
Symmetry (20738994). Jul2023, Vol. 15 Issue 7, p1295. 11p.
Autor:
Alsharafi M; Department of Mathematics, Faculty of Arts and Science, Yildiz Technical University, Esenler, Istanbul, 34220, Istanbul, Turkey., Zeren Y; Department of Mathematics, Faculty of Arts and Science, Yildiz Technical University, Esenler, Istanbul, 34220, Istanbul, Turkey., Ahmed H; Department of Mathematics, Faculty of Education, Art and Science, Aden University, Aden, Yemen., Alameri A; Department of Biomedical Engineering, Faculty of Engineering, University of Science and Technology, Sana'a.
Publikováno v:
Pharmaceutical nanotechnology [Pharm Nanotechnol] 2024 Sep 27. Date of Electronic Publication: 2024 Sep 27.
Autor:
GUTMAN, IVAN
Publikováno v:
Bulletin (Académie serbe des sciences et des arts. Classe des sciences mathématiques et naturelles. Sciences mathématiques), 2017 Jan 01(42), 1-8.
Externí odkaz:
https://www.jstor.org/stable/26359059