Title
Representation of discrete quasi-copulas through non-square matrices
Abstract
In this paper a matrix representation for discrete quasi-copulas defined on a non-square grid In× Im of [0,1]2 with m=kn, k≥1 is given. The special case of irreducible discrete quasi-copulas (those that cannot be expressed as nontrivial convex combination of other ones) is also studied. It is proved that quasi-copulas of minimal range admit a matrix representation through a special class of matrices. In the case of copulas, it is proved that irreducible copulas coincide with those of minimal range. Moreover, an algorithm to express any discrete copula as a convex combination of irreducible ones is given.
Year
DOI
Venue
2008
10.3233/978-1-58603-925-7-273
CCIA
Keywords
Field
DocType
special class,nontrivial convex combination,irreducible copula,special case,discrete quasi-copulas,minimal range,irreducible discrete quasi-copulas,discrete copula,matrix representation,convex combination,non-square matrix
Matrix (mathematics),Convex combination,Irreducibility,Pure mathematics,Square matrix,Irreducible representation,Discrete system,Matrix representation,Mathematics,Special case
Conference
Volume
ISSN
Citations 
184
0922-6389
1
PageRank 
References 
Authors
0.38
10
3
Name
Order
Citations
PageRank
I. Aguiló18510.76
Jaume Suòer211.06
Joan Torrens3125992.67