2 citations · 3 across the 7 of their papers we have counts for
8 papers
Maximal Algebras of Block Toeplitz Matrices with Entries in the Schur Algebra
Muhammad Ahsan Khan
The classification of maximal algebras of square block Toeplitz matrices is a considerably more difficult problem and has received relatively little attention in the existing liter…
On Countably -Compact Topological Spaces
Eman Almuhur, Muhammad Ahsan Khan
In this paper, some features of countably -compact topological spaces are presented and proven. The connection between countably % -compact, Tychonoff, and -Hausdorff spac…
On Some Algebraic Properties of Block Toeplitz Matrices with Commuting Entries
Muhammad Ahsan Khan, Ameur Yagoub
Toeplitz matrices are ubiquitous and play important roles across many areas of mathematics. In this paper, we present some algebraic results concerning block Toeplitz matrices with…
On some algebras of truncated Hankel and asymmetric truncated Hankel operators
Ameur Yagoub, Muhammad Ahsan Khan
In the last decade, a large amount of research has been concentrated on the operators living on the model space. Asymmetric truncated Toeplitz operators and asymmetric truncated Ha…
Block Toeplitz Matrices: Multiplicative Properties
Muhammad Ahsan Khan
Given and block Toeplitz matrices, we will prove some of the basic results concerning the product . In addition, with respect to change of basis, the characteriz…
Product of Matrix Valued Truncated Toeplitz Operators
Muhammad Ahsan Khan
Let be a matrix valued truncated Toeplitz operator-the compression of multiplication operator to vector-valued model space , where is a matrix valu…
Algebras of block Toeplitz matrices with commuting entries
Muhammad Ahsan Khan, Dan Timotin
The maximal algebras of scalar Toeplitz matrices are known to be formed by generalized circulants. The identification of algebras consisting of block Toeplitz matrices is a harder…
A Family of Maximal Algebras of Block Toeplitz matrices
Muhammad Ahsan Khan
The maximal commutative subalgebras containing only Toeplitz matrices have been identified as generalized circulants. A similar simple description cannot be obtained for block Toep…