Title

On minimal rank over finite fields

Document Type

Article

Publication Date

7-12-2006

Abstract

Let F be a field. Given a simple graph G on n vertices, its minimal rank (with respect to F) is the minimum rank of a symmetric n × n F-valued matrix whose off-diagonal zeroes are the same as in the adjacency matrix of G. If F is finite, then for every k, it is shown that the set of graphs of minimal rank at most k is characterized by finitely many forbidden induced subgraphs, each on at most (|F|/2k + 1)2 vertices. These findings also hold in a more general context.

Publication Source (Journal or Book title)

Electronic Journal of Linear Algebra

First Page

210

Last Page

214

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