J. M. S. Almira

activity

20062024

most citedDefensive k-alliances in graphs

33 citations · 47 across the 6 of their papers we have counts for

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2 papers · 1 filter

math.CO2020★ 1 cited

A note on total co-independent domination in trees

Abel Cabrera Martínez, Frank A. Hernández Mira, José M. Sigarreta Almira +1

A set $D$ of vertices of a graph $G$ is a total dominating set if every vertex of $G$ is adjacent to at least one vertex of $D$ . The total domination number of $G$ is the minimum c…

math.CO2006★ 33 cited

Defensive k-alliances in graphs

J. A. Rodriguez-Velazquez, I. G. Yero, J. M. Sigarreta

Let $Γ = (V, E)$ be a simple graph. For a nonempty set $X \subseteq V$ , and a vertex $v \in V$ , $δ_{X} (v)$ denotes the number of neighbors $v$ has in $X$ . A nonempty set $S \subseteq V$ …