English
Related papers

Related papers: On the Fourier Transformability of Strongly Almost…

200 papers

Based on the properties of distributions and measures with discrete support, we investigate temperate almost periodic distributions on the Euclidean space and connection with their Fourier transforms. We also study relations between the…

Functional Analysis · Mathematics 2023-08-16 Sergii Favorov

Meyer defined crystalline measures as tempered distributions $\mu$ such that both $\mu$ and its Fourier transform $\widehat\mu$ are pure-point Radon measures of locally finite support. He conjectured that every crystalline measure is almost…

Functional Analysis · Mathematics 2026-05-25 Jan Mazáč , Christoph Richard , Nicolae Strungaru

Let $\mu$ be a positive measure on the real line with locally finite support $\Lambda$ and integer masses such that its Fourier transform in the sense of distributions is a purely point measure. An explicit form is found for an entire…

Functional Analysis · Mathematics 2023-08-16 Sergii Favorov

Several classes of tempered measures are characterised that are eigenmeasures of the Fourier transform, the latter viewed as a linear operator on (generally unbounded) Radon measures on $\RR^d$. In particular, we classify all periodic…

Spectral Theory · Mathematics 2024-04-22 Michael Baake , Timo Spindeler , Nicolae Strungaru

In this paper, we study the class of tempered distributions whose Fourier transform is a translation bounded measure and show that each such distribution in $\mathbb{R}^d$ has order at most $2d$. We show the existence of the generalized…

Functional Analysis · Mathematics 2021-05-10 Timo Spindeler , Nicolae Strungaru

In this paper we show the existence of the generalized Eberlein decomposition for Fourier transformable measures with Meyer set support. We prove that each of the three components is also Fourier transformable and has Meyer set support. We…

Mathematical Physics · Physics 2020-08-03 Nicolae Strungaru

We give a sufficient condition for the Fourier dimension of a countable union of sets to equal the supremum of the Fourier dimensions of the sets in the union, and show by example that the Fourier dimension is not countably stable in…

Functional Analysis · Mathematics 2016-06-09 Fredrik Ekström , Tomas Persson , Jörg Schmeling

Fourier-transformable Radon measures are called doubly sparse when both the measure and its transform are pure point measures with sparse support. Their structure is reasonably well understood in Euclidean space, based on the use of…

Metric Geometry · Mathematics 2020-05-06 Michael Baake , Nicolae Strungaru , Venta Terauds

These are notes of a talk based on the work arXiv:1212.3630 joint with A. Aizenbud. Let V be a finite-dimensional vector space over a local field F of characteristic 0. Let f be a function on V of the form $f(x)= \psi (P(x))$, where P is a…

Algebraic Geometry · Mathematics 2014-09-22 Vladimir Drinfeld

We introduce and study the notions of translation bounded tempered distributions, and autocorrelation for a tempered distrubution. We further introduce the spaces of weakly, strongly and null weakly almost periodic tempered distributions…

Mathematical Physics · Physics 2017-06-06 Nicolae Strungaru , Venta Terauds

In this paper, we study the properties of the Eberlein convolution of measures and introduce a twisted version of it. For functions we show that the twisted Eberlein convolution can be seen as a translation invariant function-valued inner…

Functional Analysis · Mathematics 2022-11-15 Daniel Lenz , Timo Spindeler , Nicolae Strungaru

In this paper, we will study the continuity of the Fourier transform of measures with respect to the vague topology. We show that the Fourier transform is vaguely discontinuous on R, but becomes continuous when restricting to a class of…

Functional Analysis · Mathematics 2020-02-06 Timo Spindeler , Nicolae Strungaru

A locally finite multiset $(\Lambda,c),$ $\Lambda \subset \mathbb R^n, c : \Lambda \rightarrow \{1,...,b\}$ defines a Radon measure $\mu := \sum_{\lambda \in \Lambda} c(\lambda)\, \delta_\lambda$ that is Bohr almost periodic in the sense of…

Classical Analysis and ODEs · Mathematics 2021-07-23 Wayne M. Lawton

This paper establishes connections between the group-Fourier transform and the geometry of measures in the Heisenberg group. Firstly, it is shown that if the Fourier transform of a compactly supported, finite, Radon measure is square…

Functional Analysis · Mathematics 2020-02-27 Fernando Roman-Garcia

We define the holomorphic Fourier transform of holomorphic functions on complex reductive groups, prove some properties like the Fourier inversion formula, and give some applications. The definition of the holomorphic Fourier transform…

Group Theory · Mathematics 2007-09-05 Jinpeng An , Zhengdong Wang , Min Qian

Let $\mu$ be a probability measure on $\mathbb{R}$. We give conditions on the Fourier transform of its density for functionals of the form $H(a)=\int_{\mathbb{R}^n}h(\langle a,x\rangle)\mu^n(dx)$ to be Schur monotone. As applications, we…

Probability · Mathematics 2025-04-09 Andreas Malliaris

We propose a new integral based on Taylor measures, study its properties extensively, and we illustrate that it includes many concepts from mathematics as special cases. In particular, the new integral emerges as a generalization of the…

General Mathematics · Mathematics 2026-05-11 Athanasios Christou Micheas

An explicit formula is derived for the Fourier transform of a Gaussian measure on the Heisenberg group at the Schrodinger representation. Using this explicit formula, necessary and sufficient conditions are given for the convolution of two…

Probability · Mathematics 2015-06-26 Matyas Barczy , Gyula Pap

We study the diffraction and dynamical properties of translation bounded weakly almost periodic measures. We prove that the dynamical hull of a weakly almost periodic measure is a weakly almost periodic dynamical system with unique minimal…

Dynamical Systems · Mathematics 2020-04-02 Daniel Lenz , Nicolae Strungaru

We consider measures supported on sets of irrational numbers possessing many consecutive partial quotients satisfying a condition based on the previous partial quotients. We show that under mild assumptions, such sets will always support…

Classical Analysis and ODEs · Mathematics 2025-03-24 Robert Fraser
‹ Prev 1 2 3 10 Next ›