Title
On the degree of asymmetry of a quasi-copula with respect to a curve.
Abstract
The geometrical interpretation of symmetry of a function on the unit square is that it takes the same value in mirror images w.r.t. the main diagonal. Here, this concept is generalized by considering the reflection w.r.t. a curve representing the graph of an automorphism of the unit interval. A function on the unit square that takes the same value in mirror images w.r.t. such a curve is called symmetric w.r.t. that curve. Moreover, a measure is proposed for quantifying to what extent a (quasi-)copula can be regarded as being asymmetric w.r.t. a given curve. The major part of the paper is concerned with establishing lower and upper bounds on this degree of asymmetry. Finally, it is shown that these bounds are sharp within the class of copulas.
Year
DOI
Venue
2019
10.1016/j.fss.2018.05.002
Fuzzy Sets and Systems
Keywords
Field
DocType
Copula,Curvilinear section,Degree of asymmetry,Quasi-copula
Graph,Discrete mathematics,Copula (linguistics),Automorphism,Unit interval,Mirror image,Unit square,Asymmetry,Mathematics,Main diagonal
Journal
Volume
ISSN
Citations 
354
0165-0114
1
PageRank 
References 
Authors
0.43
1
3
Name
Order
Citations
PageRank
Bernard De Baets12994300.39
Hans De Meyer230542.39
Tarad Jwaid3112.89