Approximate isosceles ?-orthogonality and approximate ?-parallelism

Amyari, M; Torabian, M; Khibary, MM

Amyari, M (通讯作者),Islamic Azad Univ, Dept Math, Mashhad Branch, Mashhad, Iran.

BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2023; 29 (3):

Abstract

We introduce two notions of approximate isosceles co-orthogonality and two notions of approximate co-parallelism for bounded linear operators on a Hil......

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