3 citations · 3 across the 6 of their papers we have counts for
7 papers
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 be the cone of all positive semidefinite real matrices. We describe the form of all surjective maps on , ,…
Quasi-copulas as linear combinations of copulas
Gregor Dolinar, Bojan Kuzma, Nik Stopar
We prove that every quasi-copula can be written as a uniformly converging infinite sum of multiples of copulas. Furthermore, we characterize those quasi-copulas which can be writte…
Spectrum nonincreasing maps on matrices
Gregor Dolinar, Jinchuan Hou, Bojan Kuzma +1
Maps which do not increase the spectrum on complex matrices in a sense that $\Sp(Φ(A)-Φ(B))\subseteq\Sp(A-B)$ are classified.
Forcing Square_{omega_1} with finite conditions
Gregor K. Dolinar, Mirna Džamonja
We give a forcing construction of the square principle on omega_1 using forcing with conditions whose domain is finite.
On maximal distances in a commuting graph
Gregor Dolinar, Bojan Kuzma, Polona Oblak
We study maximal distances in the commuting graphs of matrix algebras defined over algebraically closed fields. In particular, we show that the maximal distance can be attained onl…
On the Polya permanent problem over finite fields
Gregor Dolinar, Alexander E. Guterman, Bojan Kuzma +1
Let $\FF$ be a finite field of characteristics different from two. We show that no bijective map transforms permanent into determinant when the cardinality of $\FF$ is sufficiently…
Introducing a nontrivial square_omega
Gregor K. Dolinar, Mirna Džamonja
We define a nontrivial version of the square principle , which we then show consistent by means of forcing with finite conditions. This paper has been withdrawn by the auth…