Vertex domination-critical graphs

Autor: Phyllis Zweig Chinn, Robert C. Brigham, Ronald D. Dutton
Rok vydání: 1988
Předmět:
Zdroj: Networks. 18:173-179
ISSN: 1097-0037
0028-3045
DOI: 10.1002/net.3230180304
Popis: A dominating set in a graph G is a set of vertices D such that every vertex of G is either in D or is adjacent some vertex of D. The domination number Γ(G) of G is the minimum cardinality of any dominating set. A graph is vertex domination-critical if the removal of any vertex decreases its domination number. This paper gives examples and properties of vertex domination-critical graphs, presents a method of constructing them, and poses some open questions. In the process several results for arbitrary graphs are presented.
Databáze: OpenAIRE