Strong Kernel Number in Certain Oriented Cycle Extension of Graphs

Autor: M. Joice Punitha
Rok vydání: 2015
Předmět:
Zdroj: Mathematics in Computer Science. 9:193-199
ISSN: 1661-8289
1661-8270
Popis: A kernel in a directed graph D(V, E) is a set S of vertices of D such that no two vertices in S are adjacent and for every vertex u in V\S there is a vertex v in S, such that (u, v) is an arc of D. The problem of existence of a kernel is itself an NP-complete for a general digraph. But in this paper we solve the strong kernel problem for certain oriented Cycle Extension of graphs namely Circular Ladder and Petersen Graphs.
Databáze: OpenAIRE