2 papers
math.FA2026
Operator Algebras of Bourgain Delbaen Spaces: Realization, Rigidity, and Ideal Structure
M. H. M. Rashid
This manuscript presents a systematic study of Calkin algebras -- the quotients of bounded operators modulo compact operators on a Banach space …
math.FA2025
Certain Upper Bounds on the -Numerical Radius of Operators in Semi-Hilbertian Spaces and Their Applications
M. H. M. Rashid
Consider a complex Hilbert space equipped with a positive bounded linear operator on . This induces a semi…