82 citations · 154 across the 37 of their papers we have counts for
31 papers · 1 filter
Markov property for systems driven by the Brownian sheet
Nacira Agram, Bernt Øksendal, Frank Proske +1
We study stochastic systems driven by a Brownian sheet and formulate a Markov property adapted to their two-parameter structure. For time-space homogeneous Itô sheets, the future e…
Optimal Stopping for Systems Driven by the Brownian Sheet
Nacira Agram, Bernt Oksendal, Frank Proske +1
We investigate optimal stopping problems for systems driven by the Brownian sheet. Our analysis is divided into two parts. In the first part we derive explicit solutions to two opt…
On the Analysis of a Singular Stochastic Volterra Differential Equation driven by a Wiener Noise
Emmanuel Coffie, Olivier Menoukeu-Pamen, Frank Proske
In this article, we construct unique strong solutions to a class of stochastic Volterra differential equations driven by a singular drift vector field and a Wiener noise. Further,…
Fokker-Planck equations for conditional McKean-Vlasov systems driven by Brownian sheets
Nacira Agram, Bernt Øksendal, Frank Proske +1
We investigate conditional McKean-Vlasov equations driven by time-space white noise, motivated by the propagation of chaos in an N-particle system with space-time Ornstein-Uhlenbec…
A Kalman filter for linear systems driven by time-space Brownian sheet
Nacira Agram, Bernt Øksendal, Frank Proske +1
We study a linear filtering problem where the signal and observation processes are described as solutions of linear stochastic differential equations driven by time-space Brownian…
Fokker-Planck equation for McKean-Vlasov SPDEs driven by time-space Brownian sheet
Nacira Agram, Bernt Oksendal, Frank Proske +1
In this paper, we consider a McKean-Vlasov (mean-field) stochastic partial differential equations (SPDEs) driven by a Brownian sheet. We study the propagation of chaos for a space-…
Long-time behaviors of some stochastic differential equations driven by Lévy noise
I. Orlovskyi, F. Proske, O. Tymoshenko
Using key tools such as Itô formula for general semi-martingales, moments estimates for Lévy-type stochastic integrals and properties of regular varying functions we find condition…
Strong solutions of fractional Brownian sheet driven SDEs with integrable drift
Antoine-Marie Bogso, Olivier Menoukeu Pamen, Frank Proske
We prove the existence of a unique Malliavin differentiable strong solution to a stochastic differential equation on the plane with merely integrable coefficients driven by the fra…
Smoothness of solutions of hyperbolic stochastic partial differential equations with -vector fields
Antoine-Marie Bogso, Moustapha Dieye, Olivier Menoukeu Pamen +1
In this paper we are interested in a quasi-linear hyperbolic stochastic differential equation (HSPDE) when the vector field is merely bounded and measurable. Although the determini…
Mean first exit times of Ornstein-Uhlenbeck processes in high-dimensional spaces
Hans Kersting, Antonio Orvieto, Frank Proske +1
The -dimensional Ornstein--Uhlenbeck process (OUP) describes the trajectory of a particle in a -dimensional, spherically symmetric, quadratic potential. The OUP is composed o…
Stability, uniqueness and existence of solutions to McKean-Vlasov SDEs in arbitrary moments
Alexander Kalinin, Thilo Meyer-Brandis, Frank Proske
We deduce stability and pathwise uniqueness for a McKean-Vlasov equation with random coefficients and a multidimensional Brownian motion as driver. Our analysis focuses on a non-Li…
On the Analysis of a Generalised Rough Ait-Sahalia Interest Rate Model
Emmanuel Coffie, Xuerong Mao, Frank Proske
Fractional Brownian motion with the Hurst parameter is used widely, for instance, to describe a 'rough' stochastic volatility process in finance. In this paper, we…
Sensitivity Analysis with respect to a Stock Price Model with Rough Volatility via a Bismut-Elworthy-Li Formula for Singular SDEs
Emmanuel Coffie, Sindre Duedahl, Frank Proske
In this paper, we show the existence of unique Malliavin differentiable solutions to SDE`s driven by a fractional Brownian motion with Hurst parameter H<1/2 and singular, unbounded…
Stability, uniqueness and existence of solutions to McKean-Vlasov SDEs: a multidimensional Yamada-Watanabe approach
Alexander Kalinin, Thilo Meyer-Brandis, Frank Proske
We establish stability and pathwise uniqueness of solutions to Wiener noise driven McKean-Vlasov equations with random non-Lipschitz continuous coefficients. In the deterministic c…
Small Noise Perturbations in Multidimensional Case
Andrey Pilipenko, Frank Norbert Proske
In this paper we study zero-noise limits of stable noise perturbed ODE's which are driven by an irregular vector field with asymptotics $% A(x)\sim \overline{a}(\frac{x}{\l…
Restoration of Well-Posedness of Infinite-dimensional Singular ODE's via Noise
David Baños, Martin Bauer, Thilo Meyer-Brandis +1
In this paper we aim at generalizing the results of A. K. Zvonkin and A. Y. Veretennikov on the construction of unique strong solutions of stochastic differential equations with si…
Strong Solutions of Mean-Field Stochastic Differential Equations with irregular drift
Martin Bauer, Thilo Meyer-Brandis, Frank Proske
We investigate existence and uniqueness of strong solutions of mean-field stochastic differential equations with irregular drift coefficients. Our direct construction of strong sol…
A Bismut-Elworthy-Li Formula for Singular SDE's Driven by a Fractional Brownian Motion and Applications to Rough Volatility Modeling
Oussama Amine, Emmanuel Coffie, Fabian Harang +1
In this paper we derive a Bismut-Elworthy-Li type formula with respect to strong solutions to singular stochastic differential equations (SDE's) with additive noise given by a mult…
Regularity Properties of the Stochastic Flow of a Skew Fractional Brownian Motion
Oussama Amine, David R. Baños, Frank Proske
In this paper we prove, for small Hurst parameters, the higher order differentiability of a stochastic flow associated with a stochastic differential equation driven by an additive…
Strong Uniqueness of Singular Stochastic Delay Equations
D. Baños, H. H. Haferkorn, F. Proske
In this article we introduce a new method for the construction of unique strong solutions of a larger class of stochastic delay equations driven by a discontinuous drift vector fie…
Girsanov Theorem for Multifractional Brownian Processes
Fabian Harang, Torstein Nilssen, Frank Proske
In this article we will present a new perspective on the variable order fractional calculus, which allows for differentiation and integration to a variable order, i.e. one differen…
Strong solutions of SDE's with generalized drift and multidimensional fractional Brownian initial noise
David R. Baños, Salvador Ortiz-Latorre, Andrey Pilipenko +1
In this paper we prove the existence of strong solutions to a SDE with a generalized drift driven by a multidimensional fractional Brownian motion for small Hurst parameters H<1/2.…
Stochastic functional differential equations and sensitivity to their initial path
David R. Baños, Giulia Di Nunno, Hannes Haferkorn +1
We consider systems with memory represented by stochastic functional differential equations. Substantially, these are stochastic differential equations with coefficients depending…
On perturbations of an ODE with non-Lipschitz coefficients by a small self-similar noise
Andrey Pilipenko, Frank Norbert Proske
We study the limit behavior of differential equations with non-Lipschitz coefficients that are perturbed by a small self-similar noise. It is proved that the limiting process is eq…