Article ID Journal Published Year Pages File Type
4649868 Discrete Mathematics 2009 5 Pages PDF
Abstract

In this paper, we study the kkth upper bases of primitive non-powerful signed digraphs. A bound on the kkth upper bases of all primitive non-powerful signed digraphs is obtained, and the equality case of the bound is characterized. We also show that there exists a “gap” in the kkth upper base set of primitive non-powerful signed digraphs.

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Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
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The kkth upper bases of primitive non-powerful signed digraphs
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