Generalized random fields and L\'evy's continuity theorem on the space of tempered distributions

H Biermé, O Durieu, Y Wang - arxiv preprint arxiv:1706.09326, 2017 - arxiv.org
In this note, we recall main properties of generalized random fields and present a proof of
the continuity theorem of Paul L\'evy for generalized random fields in the space of tempered …

Non-Gaussian quasi-likelihood estimation of SDE driven by locally stable Lévy process

H Masuda - Stochastic Processes and their Applications, 2019 - Elsevier
We address estimation of parametric coefficients of a pure-jump Lévy driven univariate
stochastic differential equation (SDE) model, which is observed at high frequency over a …

Random ReLU Neural Networks as Non-Gaussian Processes

R Parhi, P Bohra, A El Biari, M Pourya… - Journal of Machine …, 2025 - jmlr.org
We consider a large class of shallow neural networks with randomly initialized parameters
and rectified linear unit activation functions. We prove that these random neural networks …

Lévy processes and Lévy white noise as tempered distributions

RC Dalang, T Humeau - 2017 - projecteuclid.org
We identify a necessary and sufficient condition for a Lévy white noise to be a tempered
distribution. More precisely, we show that if the Lévy measure associated with this noise has …

[HTML][HTML] Multidimensional Lévy white noise in weighted Besov spaces

J Fageot, A Fallah, M Unser - Stochastic Processes and their Applications, 2017 - Elsevier
In this paper, we study the Besov regularity of a general d-dimensional Lévy white noise.
More precisely, we describe new sample paths properties of a given noise in terms of …

[HTML][HTML] On the Besov regularity of periodic Lévy noises

J Fageot, M Unser, JP Ward - Applied and Computational Harmonic …, 2017 - Elsevier
In this paper, we study the Besov regularity of Lévy white noises on the d-dimensional torus.
Due to their rough sample paths, the white noises that we consider are defined as …

Characteristic functionals in imaging and image-quality assessment: tutorial

E Clarkson, HH Barrett - Journal of the Optical Society of America A, 2016 - opg.optica.org
Characteristic functionals are one of the main analytical tools used to quantify the statistical
properties of random fields and generalized random fields. The viewpoint taken here is that …

Wavelet analysis of the Besov regularity of Lévy white noise

S Aziznejad, J Fageot - 2020 - projecteuclid.org
We characterize the local smoothness and the asymptotic growth rate of the Lévy white
noise. We do so by characterizing the weighted Besov spaces in which it is located. We …

Native Banach spaces for splines and variational inverse problems

M Unser, J Fageot - arxiv preprint arxiv:1904.10818, 2019 - arxiv.org
We propose a systematic construction of native Banach spaces for general spline-
admissible operators ${\rm L} $. In short, the native space for ${\rm L} $ and the (dual) norm …

Sample paths of white noise in spaces with dominating mixed smoothness

F Hummel - Banach Journal of Mathematical Analysis, 2021 - Springer
The sample paths of white noise are proved to be elements of certain Besov spaces with
dominating mixed smoothness. Unlike in isotropic spaces, here the regularity does not get …