[HTML][HTML] Correlation based passive imaging with a white noise source

T Helin, M Lassas, L Oksanen, T Saksala - Journal de Mathématiques …, 2018 - Elsevier
Passive imaging refers to problems where waves generated by unknown sources are
recorded and used to image the medium through which they travel. The sources are typically …

Elliptic problems with rough boundary data in generalized Sobolev spaces

A Anop, R Denk, A Murach - arxiv preprint arxiv:2003.05360, 2020 - arxiv.org
We investigate regular elliptic boundary-value problems in bounded domains and show the
Fredholm property for the related operators in an extended scale formed by inner product …

Boundary value problems of elliptic and parabolic type with boundary data of negative regularity

F Hummel - Journal of Evolution Equations, 2021 - Springer
We study elliptic and parabolic boundary value problems in spaces of mixed scales with
mixed smoothness on the half-space. The aim is to solve boundary value problems with …

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 …

On temporal regularity of stochastic convolutions in -smooth Banach spaces

M Ondreját, M Veraar - 2020 - projecteuclid.org
We show that paths of solutions to parabolic stochastic differential equations have the same
regularity in time as the Wiener process (as of the current state of art). The temporal …

[HTML][HTML] Lévy driven CARMA generalized processes and stochastic partial differential equations

D Berger - Stochastic Processes and their Applications, 2020 - Elsevier
We give a new definition of a Lévy driven CARMA random field, defining it as a generalized
solution of a stochastic partial differential equation (SPDE). Furthermore, we give sufficient …

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 …

The domain of definition of the Lévy white noise

J Fageot, T Humeau - Stochastic Processes and their Applications, 2021 - Elsevier
It is possible to construct Lévy white noises as generalized random processes in the sense
of Gel'fand and Vilenkin, or as an independently scattered random measures introduced by …

Besov-Orlicz path regularity of non-Gaussian processes

P Čoupek, M Ondreját - Potential Analysis, 2024 - Springer
Abstract In the article, Besov-Orlicz regularity of sample paths of stochastic processes that
are represented by multiple integrals of order n∈ ℕ is treated. We assume that the …

Modelling Lévy space‐time white noises

M Griffiths, M Riedle - Journal of the London Mathematical …, 2021 - Wiley Online Library
In this work, we compare Lévy space‐time white noises and cylindrical Lévy processes.
Lévy space‐time white noises are defined as infinitely divisible independently scattered …