Title

Partitioning a graph into alliance free sets

Authors

Authors

K. Shafique;R. D. Dutton

Comments

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Abbreviated Journal Title

Discret. Math.

Keywords

Alliance; Defensive alliance; Alliance-free set; Alliance cover set; Vertex partition; DEGREE CONSTRAINTS; DECOMPOSING GRAPHS; MINIMUM DEGREE; CONNECTIVITY; Mathematics

Abstract

A strong defensive alliance in a graph G = (V, E) is a set of vertices A subset of V, for which every vertex v is an element of A has at least as many neighbors in A as in V - A. We call a partition A, B of vertices to be an alliance-free partition, if neither A nor B contains a strong defensive alliance as a Subset. We prove that a connected graph G has an alliance-free partition exactly when G has a block that is other than an odd clique or an odd cycle. (C) 2008 Elsevier B.V. All rights reserved.

Journal Title

Discrete Mathematics

Volume

309

Issue/Number

10

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

3102

Last Page

3105

WOS Identifier

WOS:000266654300017

ISSN

0012-365X

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