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Investigating the numerical range and q-numerical range of non square matrices

By Aikaterini. Aretaki


Tyt. z nagłówka.Bibliogr. s. 314-315.Dostępny również w formie drukowanej.ABSTRACT: A presentation of numerical ranges for rectangular matrices is undertaken in this paper, introducing two different definitions and elaborating basic properties. Further, we extend to the q-numerical range. KEYWORDS: numerical range, projectors, matrix norms, singular values

DOI identifier: 10.7494/opmath.2011.31.3.303
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