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We consider several systems of algebras of real- and complex-valued functions, which appear in o-minimal geometry and related geometrically tame contexts. For each such system, we prove its stability under parametric integration and we…

代数几何 · 数学 2024-11-19 Raf Cluckers , Georges Comte , Jean-Philippe Rolin , Tamara Servi

Exponential-constructible functions are an extension of the class of constructible functions. This extension was formulated by Cluckers-Loeser in the context of semi-algebraic and sub-analytic structures, when they studied stability under…

逻辑 · 数学 2018-02-26 Saskia Chambille , Pablo Cubides Kovacsics , Eva Leenknegt

This paper is a companion paper to [G4], where sharp estimates are proven for Fourier transforms of compactly supported functions built out of two-dimensional real-analytic functions. The theorems of [G4] are stated in a rather general…

经典分析与常微分方程 · 数学 2016-05-27 Michael Greenblatt

We study Lebesgue integration of sums of products of globally subanalytic functions and their logarithms, called constructible functions. Our first theorem states that the class of constructible functions is stable under integration. The…

代数几何 · 数学 2019-12-19 Raf Cluckers , Daniel J. Miller

Conventional functional/path integrals used in physics are most often defined and understood, either explicitly or implicitly, as the infinite-dimensional analog of Fourier transform. In this paper, the infinite-dimensional analog of Mellin…

数学物理 · 物理学 2026-02-03 J. LaChapelle

We prove the stability under integration and under Fourier transform of a concrete class of functions containing all globally subanalytic functions and their complex exponentials. This paper extends the investigation started in [J.-M. Lion,…

代数几何 · 数学 2018-05-23 Raf Cluckers , Georges Comte , Daniel J. Miller , Jean-Philippe Rolin , Tamara Servi

Let F(R^n) be the algebra of Fourier transforms of functions from L_1(R^n), K(R^n) be the algebra of Fourier transforms of bounded complex Borel measures in R^n and W be Wiener algebra of continuous 2pi-periodic functions with absolutely…

经典分析与常微分方程 · 数学 2011-08-16 A. F. Grishin , M. V. Skoryk

We call a function "constructible" if it has a globally subanalytic domain and can be expressed as a sum of products of globally subanalytic functions and logarithms of positively-valued globally subanalytic functions. Our main theorem…

经典分析与常微分方程 · 数学 2013-04-24 Raf Cluckers , Daniel J. Miller

We show that the class of $\mathcal{L}$-constructible functions is closed under integration for any $P$-minimal expansion of a $p$-adic field $(K,\mathcal{L})$. This generalizes results previously known for semi-algebraic and sub-analytic…

逻辑 · 数学 2015-02-24 Pablo Cubides Kovacsics , Eva Leenknegt

This work brings Mellin transforms into the realm of motivic integration. The new, larger class of motivic functions is stable under motivic Mellin and Fourier transforms, with general Fubini results and change of variables formulas. It…

代数几何 · 数学 2024-12-24 Raf Cluckers , François Loeser , Kien Huu Nguyen , Floris Vermeulen

For a subfield K of C, we denote by C^K the category of algebras of functions defined on the globally subanalytic sets that are generated by all K-powers and logarithms of positively-valued globally subanalytic functions. For any function f…

代数几何 · 数学 2025-07-09 Georges Comte , Dan J. Miller , Tamara Servi

In this contribution we generalize the classical Fourier Mellin transform [S. Dorrode and F. Ghorbel, Robust and efficient Fourier-Mellin transform approximations for gray-level image reconstruction and complete invariant description,…

环与代数 · 数学 2013-06-10 Eckhard Hitzer

Following recent work of R. Cluckers and F. Loeser [Fonctions constructible et integration motivic I, C. R. Math. Acad. Sci. Paris 339 (2004) 411 - 416] on motivic integration, we develop a direct image formalism for positive constructible…

逻辑 · 数学 2014-04-29 R. Cluckers , M. Edmundo

We prove that functions with compact support in non-quasianalytic classes of Roumieu-type and of Beurling-type defined by a weight matrix with some mild regularity conditions can be characterized by the decay properties of their Fourier…

泛函分析 · 数学 2017-10-30 Gerhard Schindl

Given a charge and current distribution with compact support, the associated potentials and fields are generally not integrable in the classical sense. However, it is convenient to be able to define their Fourier transform in order to…

数学物理 · 物理学 2024-03-15 Tristram de Piro

A natural connection between rational functions of several real or complex variables, and subspace collections is explored. A new class of function, superfunctions, are introduced which are the counterpart to functions at the level of…

代数几何 · 数学 2016-02-23 Graeme W. Milton

We introduce a general definition of hybrid transforms for constructible functions. These are integral transforms combining Lebesgue integration and Euler calculus. Lebesgue integration gives access to well-studied kernels and to regularity…

代数拓扑 · 数学 2022-11-17 Vadim Lebovici

In this paper, we introduce new classes of functions that extend the known classes of functions of complex variable, such as entire functions, meromorphic functions, rational functions and polynomial functions and take values in the set of…

经典分析与常微分方程 · 数学 2025-08-14 Vyacheslav M. Abramov

The notion of constructible functions in the setting of tame real geometry has been introduced by Cluckers and Dan Miller in their work on parametric integration of globally subanalytic functions. A function on a globally subanalytic set is…

逻辑 · 数学 2026-04-28 Tobias Kaiser

Let K be an algebraically closed field, X a K-scheme, and X(K) the set of closed points in X. A constructible set C in X(K) is a finite union of subsets Y(K) for finite type subschemes Y in X. A constructible function f : X(K) --> Q has…

代数几何 · 数学 2007-05-23 Dominic Joyce
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