J. Marovt

activity

20192024

collaborators

3 papers

math.FA2024

Bi-monotone maps on the set of all variance-covariance matrices with respect to minus partial order

Gregor Dolinar, Dijana Ilišević, Bojan Kuzma +1

Let $H_{n}^{+} (R)$ be the cone of all positive semidefinite $n \times n$ real matrices. We describe the form of all surjective maps on $H_{n}^{+} (R)$ , $n \geq 3$ ,…

math.FA2022

On some generalized inverses and partial orders in $*$ -rings

Janko Marovt, Dijana Mosić, Insa Cremer

Let $R$ be a unital ring with involution. The notions of 1MP-inverse and MP1-inverse are extended from $M_{m, n} (C)$ , the set of all $m \times n$ matrices over $\…

math.FA2019

Preservers of partial orders on the set of all variance-covariance matrices

Iva Golubić, Janko Marovt

Let $H_{n}^{+} (R)$ be the cone of all positive semidefinite $n \times n$ real matrices. Two of the best known partial orders that were mostly studied on subsets of square c…

Bi-monotone maps on the set of all variance-covariance matrices with respect to minus partial order

On some generalized inverses and partial orders in ∗-rings

Preservers of partial orders on the set of all variance-covariance matrices

On some generalized inverses and partial orders in $*$ -rings