Investigating the Numerical Range of Non Square Matrices

2009/04/28 by Aikaterini Aretaki, Aretaki, Aikaterini, John Maroulas +1
Mathematics · #FOS: Mathematics #Functional Analysis (math.FA) #math.FA

paper · pdf · doi:10.48550/arxiv.0904.4325

arxiv created 2009/04/28 · arxiv updated 2009/12/01

Abstract

A presentation of numerical range for rectangular matrices is undertaken in this paper, introducing two different definitions and elaborating basic properties. Then we are extended to the treatment of rank-k numerical range.

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