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July 3, 2024Open Access

Matrices with Hyperbolical Krein Space Numerical Range

Natália Bebiano R. Lemos G. Soares

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Abstract

This paper is devoted to matrices with hyperbolical Krein space numerical range. This shape characterizes the 2-by-2 case and persists for certain classes of matrices, independently of their size. Ne\-cessary and sufficient conditions for low dimensional tridiagonal matrices to have this shape are obtained only involving the matrix entries

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Cite This Study

Bebiano et al. (2024) studied this question.

synapsesocial.com/papers/68e6191db6db6435875abe4a https://doi.org/10.48550/arxiv.2407.03164

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