15 citations · 62 across the 12 of their papers we have counts for
4 papers · 1 filter
Extending multivariate sub-quasi-copulas
Damjana Kokol Bukovšek, Tomaž Košir, Blaž Mojškerc +1
In this paper, we introduce patchwork constructions for multivariate quasi-copulas. These results appear to be new since the kind of approach has been limited to either copulas or…
Symmetric Nonnegative Trifactorization of Pattern Matrices
Damjana Kokol Bukovšek, Helena Šmigoc
A factorization of an nonnegative symmetric matrix of the form , where is a symmetric matrix, and both and are required to be nonne…
Exact upper bound for copulas with a given diagonal section
Damjana Kokol Bukovšek, Blaž Mojškerc, Nik Stopar
We answer a 15-year-old open question about the exact upper bound for bivariate copulas with a given diagonal section by giving an explicit formula for this bound. As an applicatio…
Coherence and avoidance of sure loss for standardized functions and semicopulas
Erich Peter Klement, Damjana Kokol Bukovšek, Blaž Mojškerc +3
We discuss avoidance of sure loss and coherence results for semicopulas and standardized functions, i.e., for grounded, 1-increasing functions with value at .…