Title
Defects and transformations of quasi-copulas.
Abstract
Six different functions measuring the defect of a quasi-copula, i.e., how far away it is from a copula, are discussed. This is done by means of extremal non-positive volumes of specific rectangles (in a way that a zero defect characterizes copulas). Based on these defect functions, six transformations of quasi-copulas are investigated which give rise to six different partitions of the set of all quasi-copulas. For each of these partitions, each equivalence class contains exactly one copula being a fixed point of the transformation under consideration. Finally, an application to the construction of so-called imprecise copulas is given.
Year
DOI
Venue
2016
10.14736/kyb-2016-6-0848
KYBERNETIKA
Keywords
Field
DocType
copula,quasi-copula,transformation of quasi-copulas,imprecise copula
Econometrics,Applied mathematics,Mathematical optimization,Copula (linguistics),Copula (probability theory),Mathematics
Journal
Volume
Issue
ISSN
52
6
0023-5954
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Michal Dibala100.34
Susanne Saminger-Platz27610.94
Radko Mesiar33778472.41
Erich Peter Klement4989128.89