The numerical range of some periodic tridiagonal operators is the convex hull of the numerical ranges of two finite matrices

DOI10.1080/03081087.2021.1957760OpenAlexW3210389478MaRDI QIDQ5860872

Hiroshi Nakazato, Rubén A. Martínez-Avendaño, Benjamín A. Itzá-Ortiz

Publication date: 24 November 2021

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2103.01866

zbMATH Keywords

numerical rangetridiagonal operators

Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Numerical range, numerical radius (47A12) Jacobi (tridiagonal) operators (matrices) and generalizations (47B36)

Related Items (2)

The numerical range of a periodic tridiagonal operator reduces to the numerical range of a finite matrix ⋮ Matrices similar to centrosymmetric matrices

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