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math.PR2017
Characterization of Extreme Copulas
Partha Pratim Ghosh, Subir Kumar Bhandari
In this paper our aim is to characterize the set of extreme points of the set of all n-dimensional copulas (n > 1). We have shown that a copula must induce a singular measure with…
math.CT2017
Internal Neighbourhood Spaces
Partha Pratim Ghosh
The main aim of this paper is to provide a description of neighbourhood operators in finitely complete categories with finite coproducts and a proper factorisation system such that…