Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Omladič, Matjaž"'
The recent survey published in Fuzzy Sets and Systems nicknamed ``Hitchhiker's Guide'' has raised the rating of quasi-copula problems in the dependence modeling community in spite of the lack of statistical interpretation of quasi-copulas. Some of th
Externí odkaz:
http://arxiv.org/abs/2410.19339
Autor:
Omladič, Matjaž, Stopar, Nik
The aim of this paper is to present three construction methods for quasi-copulas based on recent developments: a representation of multivariate quasi-copulas by means of infima and suprema of copulas, an extension of a classical result on shuffles of
Externí odkaz:
http://arxiv.org/abs/2407.15393
We introduce the notions of $\varepsilon$-approximate fixed point and weak $\varepsilon$-approximate fixed point. We show that for a group of unitary matrices even the existence of a nontrivial weak $\varepsilon$-approximate fixed point for sufficien
Externí odkaz:
http://arxiv.org/abs/2310.07466
Publikováno v:
Journal of Mathematical Analysis and Applications, 540 (2024)
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 only bivariate quasi-copulas so far. It seems that the multivariate ca
Externí odkaz:
http://arxiv.org/abs/2309.15824
Autor:
Klement, Erich Peter, Bukovšek, Damjana Kokol, Mojškerc, Blaž, Omladič, Matjaž, Saminger-Platz, Susanne, Stopar, Nik
Publikováno v:
Internat. J. Approx. Reason. 165 (2024), 109089
We discuss avoidance of sure loss and coherence results for semicopulas and standardized functions, i.e., for grounded, 1-increasing functions with value $1$ at $(1,1,\ldots, 1)$. We characterize the existence of a $k$-increasing $n$-variate function
Externí odkaz:
http://arxiv.org/abs/2307.11059
Autor:
Omladič, Matjaž, Šivic, Klemen
A seminal result of Gerstenhaber gives the maximal dimension of a linear space of nilpotent matrices. It also exhibits the structure of this space where the maximal dimension is attained. Extensions of this result in the direction of linear spaces of
Externí odkaz:
http://arxiv.org/abs/2209.09416
The maximal dimension of commutative subspaces of $M_n(\mathbb{C})$ is known. So is the structure of such a subspace when the maximal dimension is achieved. We consider extensions of these results and ask the following natural questions: If $V$ is a
Externí odkaz:
http://arxiv.org/abs/2209.08074
Publikováno v:
In Journal of Mathematical Analysis and Applications 1 December 2024 540(1)
Autor:
Klement, Erich Peter, Kokol Bukovšek, Damjana, Mojškerc, Blaž, Omladič, Matjaž, Saminger-Platz, Susanne, Stopar, Nik
Publikováno v:
In International Journal of Approximate Reasoning February 2024 165
Copulas are becoming an essential tool in analyzing data thus encouraging interest in related questions. In the early stage of exploratory data analysis, say, it is helpful to know local copula bounds with a fixed value of a given measure of associat
Externí odkaz:
http://arxiv.org/abs/2009.06221