Best approximation by normal operators

DOI10.1016/0021-9045(74)90084-7zbMath0291.41025OpenAlexW2021177529MaRDI QIDQ1211215

Richard B. Holmes

Publication date: 1974

Published in: Journal of Approximation Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0021-9045(74)90084-7

Mathematics Subject Classification ID

Norms (inequalities, more than one norm, etc.) of linear operators (47A30) Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

Related Items (6)

Antinormality and \(m\)-isometry of shift on weighted trees ⋮ Antinormal weighted composition operators ⋮ Antinormal composition operators on the \(L^2\)-space of an atomic measure space ⋮ Iterative Tikhonov regularization of tensor equations based on the Arnoldi process and some of its generalizations ⋮ Antinormal weighted composition operators on \(L^2(\mu)\)-space of an atomic measure space ⋮ On Proximinal Sets of Normal Operators

Cites Work

• Irreducible operators
• Partial isometries
• Isometries of operator algebras
• Interpolation zwischen den Klassen 𝔖_p von Operatoren in Hilberträumen
• Some Metric Inequalities in the Space of Matrices
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