4 papers
On matrix valued (asymmetric) truncated Toeplitz operators
Nihat Gokhan Gogus, Rewayat Khan
Matrix valued (asymmetric) truncated Toeplitz operators are generally not complex symmetric. In this paper, we define a new conjugation with unique properties and study its relatio…
Binormal block Toeplitz operators with matrix valued circulant symbols
Nihat Gokhan Gogus, Rewayat Khan, Eungil Ko +1
This paper focuses on the binormality of block Toeplitz operators with matrix valued circulant symbols. We also study some Î-dilations of Toeplitz operators. Moreover, we also ana…
Characterizations of Matrix Valued Asymmetric Truncated Toeplitz Operators
Rewayat Khan, Yagoub Ameur, Jamroz Khan
We characterize matrix-valued asymmetric truncated Toeplitz operators (which are compressions of multiplication operators acting between two possibly different model spaces) by usi…
Rigorous Perturbation Bounds for the QX Decomposition for Centrosymmetric Matrices
Aamir Farooq, Rewayat Khan, Uzma Rani +1
Konrad Burnik suggests a structure-preserving QR factorization for centrosymmetric matrices, known as QX factorization. In this article, we obtain the explicit expressions for rigo…