Chapter 46
Minimum Rank, Maximum Nullity, and Zero Forcing Number of Graphs
Shaun M. Fallat
University of Regina
Leslie Hogben
Iowa State University and American Institute of Mathematics
This chapter represents an overview of research related to a notion of the “rank of a graph” and the dual concept known as the “nullity of a graph,” from the point of view of associating a fixed collection of symmetric or Hermitian matrices to a given graph. This topic and related questions have enjoyed a fairly large history within discrete mathematics, and have become very popular among linear algebraists recently, partly based on its connection to certain inverse eigenvalue problems, but also because of the many interesting applications (e.g., to communication ...
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