Sushil Singla

works on

convexity 1 noncommutative geometry 1 operator systems 1 representation theory 1 unitary dilations 1

From the 1 of 9 linked papers with an AI index.

activity

20242026

collaborators

Showing math.FAShow all

3 papers · 1 filter

math.FA2026

Linear maps preserving product of involutions

Chi-Kwong Li, Tejbir Lohan, Sushil Singla

An element of the algebra $M_{n} (F)$ of $n \times n$ matrices over a field $F$ is called an involution if its square equals the identity matrix. Gustafson, Halmos,…

math.FA2024

Classification of abelian finite-dimensional $C^{*}$ -algebras by orthogonality

Bojan Kuzma, Sushil Singla

The main goal of the article is to prove that if $A_{1}$ and $A_{2}$ are Birkhoff-James isomorphic $C^{*}$ -algebras over the fields $F_{1}$ and $F_{2}$ , res…

math.FA2024

Linear preservers of parallel matrix pairs with respect to the $k$ -numerical radius

Bojan Kuzma, Chi-Kwong Li, Edward Poon +1

Let $1 \leq k < n$ be integers. Two $n \times n$ matrices $A$ and $B$ form a parallel pair with respect to the $k$ -numerical radius $w_{k}$ if $w_{k} (A + I^¼ B) = w_{k} (A) + w_{k} (B)$ for so…

Linear maps preserving product of involutions

Classification of abelian finite-dimensional C∗-algebras by orthogonality

Linear preservers of parallel matrix pairs with respect to the k-numerical radius

Classification of abelian finite-dimensional $C^{*}$ -algebras by orthogonality

Linear preservers of parallel matrix pairs with respect to the $k$ -numerical radius