Partial Smoothness of the Numerical Radius at Matrices Whose Fields of Values are Disks

DOI10.1137/18M1236289zbMath1456.49017arXiv1901.00050OpenAlexW3042397500MaRDI QIDQ5146608

Michael L. Overton, Adrian S. Lewis

Publication date: 26 January 2021

Published in: SIAM Journal on Matrix Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1901.00050

zbMATH Keywords

numerical radiusCrouzeix's conjecturepartial smoothnessdisk matrices

Mathematics Subject Classification ID

Nonsmooth analysis (49J52) Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60)

Related Items

Factorization of Singular Matrix Polynomials and Matrices with Circular Higher Rank Numerical Ranges ⋮ Convergence Rate Analysis and Improved Iterations for Numerical Radius Computation ⋮ An experimental comparison of methods for computing the numerical radius

Uses Software

• CVX
• Chebfun

Cites Work

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