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We study the property of strong barycentric associativity, a stronger version of barycentric associativity for functions with indefinite arities. We introduce and discuss the more general property of strong barycentric preassociativity, a…

Rings and Algebras · Mathematics 2016-01-27 Jean-Luc Marichal , Bruno Teheux

We investigate the associativity property for functions of indefinite arities and introduce and discuss the more general property of preassociativity, a generalization of associativity which does not involve any composition of functions.

Rings and Algebras · Mathematics 2014-09-25 Jean-Luc Marichal , Bruno Teheux

We provide a characterization of the variadic functions which are barycentrically preassociative as compositions of length-preserving associative string functions with one-to-one unary maps. We also discuss some consequences of this…

Rings and Algebras · Mathematics 2016-01-22 Jean-Luc Marichal , Bruno Teheux

We describe the class of polynomial functions which are barycentrically associative over an infinite commutative integral domain.

Rings and Algebras · Mathematics 2015-09-14 Jean-Luc Marichal , Pierre Mathonet , Jörg Tomaschek

The associativity property, usually defined for binary functions, can be generalized to functions of a given fixed arity n>=1 as well as to functions of multiple arities. In this paper, we investigate these two generalizations in the case…

Rings and Algebras · Mathematics 2011-03-02 Miguel Couceiro , Jean-Luc Marichal

The classical property of associativity is very often considered in aggregation function theory and fuzzy logic. In this paper we provide axiomatizations of various classes of preassociative functions, where preassociativity is a…

Rings and Algebras · Mathematics 2015-03-16 Jean-Luc Marichal , Bruno Teheux

In this paper we consider two properties of variadic functions, namely associativity and preassociativity, that are pertaining to several data and language processing tasks. We propose parameterized relaxations of these properties and…

Group Theory · Mathematics 2016-06-21 Miguel Couceiro , Jean-Luc Marichal , Bruno Teheux

This paper addresses the problem of regularity properties of functions represented as an expansion in a wavelet basis with random coefficients in terms of finiteness of their Besov norm with probability 1. Such representations are used to…

Statistics Theory · Mathematics 2013-10-24 Natalia Bochkina

We give complete, finite quasiequational axiomatisations for algebras of unary partial functions under the operations of composition, domain, antidomain, range and intersection. This completes the extensive programme of classifying algebras…

Logic · Mathematics 2014-10-16 Robin Hirsch , Marcel Jackson , Szabolcs Mikulás

In this article we utilise abstract convexity theory in order to unify and generalize many different concepts from nonsmooth analysis. We introduce the concepts of abstract codifferentiability, abstract quasidifferentiability and abstract…

Optimization and Control · Mathematics 2018-10-03 M. V. Dolgopolik

We define decision-making functions which arise from studying the multidimensional generalization of the weighted Bajraktarevi\'c means. It allows a nonlinear approach to optimization problems. These functions admit several interesting…

Optimization and Control · Mathematics 2020-07-10 Zsolt Páles , Paweł Pasteczka

We provide a description of the class of n-ary operations on an arbitrary chain that are quasitrivial, symmetric, nondecreasing, and associative. We also prove that associativity can be replaced with bisymmetry in the definition of this…

Rings and Algebras · Mathematics 2019-03-01 Jimmy Devillet , Gergely Kiss , Jean-Luc Marichal

In this paper, using the tools from the lineability theory, we distinguish certain subsets of $p$-adic differentiable functions. Specifically, we show that the following sets of functions are large enough to contain an infinite dimensional…

The article is devoted to the investigation of properties of quasi-invariant measures with values in non-Archimedean fields such as: convolutions of measures and functions; continuity of functions of measures; non-associative noncommutative…

Rings and Algebras · Mathematics 2018-12-18 S. V. Ludkovsky

We introduce a new type of local and microlocal asymptotic analysis in algebras of generalized functions, based on the presheaf properties of those algebras and on the properties of their elements with respect to a regularizing parameter.…

Functional Analysis · Mathematics 2009-04-18 Antoine Delcroix , Michael Oberguggenberger , Jean-André Marti

In this paper we show that bisymmetry, which is an algebraic property, has a regularity improving feature. More precisely, we prove that every bisymmetric, partially strictly monotonic, reflexive and symmetric function $F:I^2\to I$ is…

Classical Analysis and ODEs · Mathematics 2021-07-16 Pál Burai , Gergely Kiss , Patricia Szokol

Barycentric algebras are an abstraction of the notion of convex sets, defined by a set of equations. We study semitopological and topological barycentric algebras, in the spirit of a previous study by Klaus Keimel on semitopological and…

Functional Analysis · Mathematics 2026-05-22 Jean Goubault-Larrecq

The purpose of this paper is to extend the definition of quasiarithmetic means by taking a strictly monotone generating function instead of a strictly monotone and continuous one. We establish the properties of such means and compare them…

Classical Analysis and ODEs · Mathematics 2024-12-11 Zsolt Páles , Paweł Pasteczka

We introduce the notion of the generalized-analytical function of the poly-number variable, which is a non-trivial generalization of the notion of analytical function of the complex variable and, therefore, may turn out to be fundamental in…

Mathematical Physics · Physics 2007-05-23 G. I. Garasko

The theory of quasi-arithmetic means is a powerful tool in the study of covariance functions across space-time. In the present study we use quasi-arithmetic functionals to make inferences about the permissibility of averages of functions…

Probability · Mathematics 2007-06-13 E. Porcu , J. Mateu , G. Christakos
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