On map**s which approximately preserve angles

SMS Nabavi Sales - Aequationes mathematicae, 2018 - Springer
In this paper, we study map**s, which approximately preserve angles between inner
product spaces. We also introduce a notion of angle in normed spaces. The notion of angle …

[PDF][PDF] Angular right symmetricity of bounded linear operators on Hilbert spaces

N Sales, SM Sadegh - Glasnik matematički, 2021 - hrcak.srce.hr
ANGULAR RIGHT SYMMETRICITY OF BOUNDED LINEAR OPERATORS ON HILBERT
SPACES Seyed Mohammad Sadegh Nabavi Sales Hakim Sabzevari Univ Page 1 GLASNIK …

Map**s Approximately Preserving Angles

SMS Nabavi Sales - Mediterranean Journal of Mathematics, 2022 - Springer
We consider a concept of angle in normed spaces which preserves isosceles orthogonality
and approximate isosceles orthogonality and then we investigate linear map**s which …

[CITAS][C] SERIJA III

SMSN Sales