Article ID Journal Published Year Pages File Type
4601665 Linear Algebra and its Applications 2011 6 Pages PDF
Abstract

The rank of a graph G is defined to be the rank of its adjacency matrix. In this paper, we consider the following problem: What is the structure of a connected graph with rank 4? This question has not yet been fully answered in the literature, and only some partial results are known. In this paper we resolve this question by completely characterizing graphs G whose adjacency matrix has rank 4.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory