- Tytuł:
- The irregularity of graphs under graph operations
- Autorzy:
-
Abdo, Hosam
Dimitrov, Darko - Powiązania:
- https://bibliotekanauki.pl/articles/30148232.pdf
- Data publikacji:
- 2014-05-01
- Wydawca:
- Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
- Tematy:
-
irregularity of graphs
total irregularity of graphs
graph operations
Zagreb indices - Opis:
- The irregularity of a simple undirected graph $G$ was defined by Albertson [5] as $irr(G) = ∑_{uv∈E(G)} |dG(u) − dG(v)|$, where $d_G(u)$ denotes the degree of a vertex $u ∈ V (G)$. In this paper we consider the irregularity of graphs under several graph operations including join, Cartesian product, direct product, strong product, corona product, lexicographic product, disjunction and symmetric difference. We give exact expressions or (sharp) upper bounds on the irregularity of graphs under the above mentioned operations
- Źródło:
-
Discussiones Mathematicae Graph Theory; 2014, 34, 2; 263-278
2083-5892 - Pojawia się w:
- Discussiones Mathematicae Graph Theory
- Dostawca treści:
- Biblioteka Nauki
Artykuł