8 citations · 13 across the 9 of their papers we have counts for
11 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…
What does Birkhoff-James orthogonality know about the norm?
Ljiljana Arambašić, Alexander Guterman, Bojan Kuzma +2
It is shown that Birkhoff-James orthogonality knows everything about the smooth norms in reflexive Banach spaces and can also compute the dimensions of the underlying normed spaces…
On intersection density of transitive groups of degree a product of two odd primes
Ademir Hujdurović, Klavdija Kutnar, Bojan Kuzma +3
Two elements and of a permutation group acting on a set are said to be intersecting if for some . More generally, a subset of …
Between the enhanced power graph and the commuting graph
Peter J. Cameron, Bojan Kuzma
The purpose of this note is to define a graph whose vertex set is a finite group , whose edge set is contained in that of the commuting graph of and contains the enhanced po…
Realizability problem for commuting graphs
Michael Giudici, Bojan Kuzma
We investigate properties which ensure that a given finite graph is the commuting graph of a group or semigroup. We show that all graphs on at least two vertices such that no verte…