Title
Supermigrativity of aggregation functions.
Abstract
A functional inequality, called supermigrativity, was recently introduced for bivariate semi-copulas and applied in various problems arising in the study of aging properties of stochastic systems. Here, we revisit this notion and extend it to the case of aggregation functions in higher dimensions. In particular, we show how supermigrativity can be expressed via monotonicity of a function with respect to logarithmic majorization ordering of real vectors. Various alternative characterizations of supermigrativity are illustrated, together with some of its weaker versions. Several examples show similarities and differences between the bivariate and the general case.
Year
DOI
Venue
2018
10.1016/j.fss.2017.05.015
Fuzzy Sets and Systems
Keywords
Field
DocType
Aggregation functions,Copulas,Functional inequalities,Multicriteria decision making,Supermigrativity
Discrete mathematics,Monotonic function,Copula (linguistics),Majorization,Inequality,Logarithm,Bivariate analysis,Mathematics
Journal
Volume
ISSN
Citations 
335
0165-0114
2
PageRank 
References 
Authors
0.38
8
2
Name
Order
Citations
PageRank
Fabrizio Durante139159.28
Roberto Ghiselli Ricci215014.87