On mappings which approximately preserve angles

DOI10.1007/s00010-018-0571-6OpenAlexW2805477013MaRDI QIDQ1621489

S. M. S. Nabavi Sales

Publication date: 9 November 2018

Published in: Aequationes Mathematicae (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00010-018-0571-6

zbMATH Keywords

Birkhoff-James orthogonalityangle in normed spacesapproximate angle preservingapproximate orthogonality preserving

Mathematics Subject Classification ID

Hilbert and pre-Hilbert spaces: geometry and topology (including spaces with semidefinite inner product) (46C05) Geometry and structure of normed linear spaces (46B20) Transformers, preservers (linear operators on spaces of linear operators) (47B49)

Related Items (4)

Mappings approximately preserving angles ⋮ On Exact and Approximate Orthogonalities Based on Norm Derivatives ⋮ Angular right symmetricity of bounded linear operators on Hilbert spaces ⋮ Ulam Stability in Real Inner-Product Spaces

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