3 papers
math.FA2026
On the minimum modulus of dual truncated Toeplitz operators
Sudip Ranjan Bhuia, Ramesh Golla, Puspendu Nag
This article provides a systematic investigation of the minimum modulus of dual truncated Toeplitz operators (DTTOs) acting on the orthogonal complement of the model space $\…
math.FA2026
Norm attaining dual truncated Toeplitz operators
Sudip Ranjan Bhuia, Puspendu Nag
This paper develops a complete framework for understanding when a dual truncated Toeplitz operator (DTTO) attains its norm. Given a nonconstant inner function , the DTTO associa…
math.FA2025
On Absolutely norm (minimum) attaining block operator matrix
Puspendu Nag, Ramesh Golla
In this article, we study absolutely norm attaining operators (-operators, in short), that is, operators that attain their norm on every non-zero closed subspace of a…