A New Look on Discrete Quasi-copulas

In this paper discrete quasi-copulas (defined on a square grid I2 n of [0,1]) are studied and it is proved that they can be represented by means of a special class of matrices with entries in [-1,1]. Special considerations are made for the case of irreducible discrete quasi-copulas (those with range In) defined on the finite chain In, showing that they can be represented through Alternating-Sign Matrices and that they generate all discrete quasi-copulas through convex sums.

• Type: Conference
• Year: 2007
• Where: EUSFLAT
• Authors: Isabel Aguiló, Jaume Suñer, Joan Torrens
• Keywords: Discrete Quasi-copulas, EUSFLAT 2007, Paper Discrete, Square Grid