Dragan S. Raki'c

activity

20142022

ℓ^{p} (I)^{+}

determined by increasable doubly substochastic operators and its linear preservers

4 citations · 4 across the 3 of their papers we have counts for

collaborators

3 papers

math.RA2022

1MP and MP1 inverses and one-sided star orders in a ring with involution

Dragan S. Rakić, Martin Z. Ljubenović

The classes of 1MP-inverses and MP1-inverses are recently introduced classes of generalized inverses of complex matrix. Actually, they coincide with the classes of ${1, 2, 3}$ and…

math.FA2021★ 4 cited

Submajorization on $ℓ^{p} (I)^{+}$ determined by increasable doubly substochastic operators and its linear preservers

Martin Z. Ljubenović, Dragan S. Rakić

We note that the well-known result of Von Neumann \cite{von} is not valid for all doubly substochastic operators on discrete Lebesgue spaces $ℓ^{p} (I)$ , $p \in [1, \infty)$ . This fac…

math.RA2014

Group, Moore-Penrose, core and dual core inverse in rings with involution

Dragan S. Rakić, Nebojša Č. Dinčić, Dragan S. Djordjević

Let $R$ be a ring with involution. The recently introduced notions of the core and dual core inverse are extended from matrix to an arbitrary $*$ -ring case. It is shown that the gr…

1MP and MP1 inverses and one-sided star orders in a ring with involution

Submajorization on ℓp(I)+ determined by increasable doubly substochastic operators and its linear preservers

Group, Moore-Penrose, core and dual core inverse in rings with involution

Submajorization on $ℓ^{p} (I)^{+}$ determined by increasable doubly substochastic operators and its linear preservers