20.500.12556/DiRROS-18197 Quasi-copulas as linear combinations of copulas 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 written as a finite sum of multiples of copulas, i.e., that are a linear combination of two copulas. This generalizes a recent result of Fernández-Sánchez, Quesada-Molina, and Úbeda-Flores who considered linear combinations of discrete copulas. quasi-copulas copulas linear combination affine combination Minkowski norm true false true Angleški jezik Ni določen Neznano 2024-02-16 13:16:48 2024-02-16 13:16:48 2024-02-19 13:42:46 0000-00-00 00:00:00 2024 0 0 15 str. article no. 108821 Vol. 477 Feb. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2024-02-01 519.2 0165-0114 10.1016/j.fss.2023.108821 179977731 https://www.sciencedirect.com/science/article/pii/S0165011423004669 1 e113e759-ccbc-11ee-aa6e-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=24711 1-s2.0-S0165011423004669-main.pdf 1-s2.0-S0165011423004669-main.pdf 1 6003D2B404986F53D7838260F615B5E6 5b908d2523e5fc2b6d9031a90479df78a2e470a88476f258a7c79f497829a1e6 1ebc9fea-ccbd-11ee-aa6e-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=24712 Inštitut za matematiko, fiziko in mehaniko 0 0 0