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pro vyhledávání: '"Gerardo Reyna Hernández"'
Autor:
José Ángel Juárez Morales, Jesús Romero Valencia, Raúl Juárez Morales, Gerardo Reyna Hernández
Publikováno v:
Mathematical Biosciences and Engineering, Vol 20, Iss 7, Pp 12118-12129 (2023)
A nonempty subset $ D $ of vertices in a graph $ \Gamma = (V, E) $ is said is an offensive alliance, if every vertex $ v \in \partial(D) $ satisfies $ \delta_D(v) \geq \delta_{\overline{D}}(v) + 1 $; the cardinality of a minimum offensive alliance of
Externí odkaz:
https://doaj.org/article/b50a0d4db7da478e8291a205d4fa241f
Publikováno v:
Mathematics, Vol 10, Iss 3, p 298 (2022)
Let Γ(V,E) be a simple connected graph with more than one vertex, without loops or multiple edges. A nonempty subset S⊆V is a global offensive alliance if every vertex v∈V−S satisfies that δS(v)≥δS¯(v)+1. The global offensive alliance num
Externí odkaz:
https://doaj.org/article/114cb6825f814c4da12a219c77ae02b3
Autor:
José Ángel Juárez Morales, Gerardo Reyna Hernández, Jesús Romero Valencia, Omar Rosario Cayetano
Publikováno v:
Mathematics, Vol 9, Iss 14, p 1627 (2021)
Often for understanding a structure, other closely related structures with the former are associated. An example of this is the study of hyperspaces. In this paper, we give necessary and sufficient conditions for the existence of finitely-dimensional
Externí odkaz:
https://doaj.org/article/7d97c9f188384ca690e455e503b9c900