Nonlinear Young differential equations: a review

L Galeati - Journal of Dynamics and Differential Equations, 2023 - Springer
Nonlinear Young integrals have been first introduced in Catellier and Gubinelli (Stoch
Process Appl 126 (8): 2323–2366, 2016) and provide a natural generalisation of classical …

Noiseless regularisation by noise

L Galeati, M Gubinelli - Revista Matemática Iberoamericana, 2021 - ems.press
We analyse the effect of a generic continuous additive perturbation to the well-posedness of
ordinary differential equations. Genericity here is understood in the sense of prevalence …

Regularization of multiplicative SDEs through additive noise

L Galeati, FA Harang - The Annals of Applied Probability, 2022 - projecteuclid.org
We investigate the regularizing effect of certain additive continuous perturbations on SDEs
with multiplicative fractional Brownian motion (fBm). Traditionally, a Lipschitz requirement on …

Numerical attractors via discrete rough paths

ND Cong, LH Duc, PT Hong - Journal of Dynamics and Differential …, 2023 - Springer
We study a rough difference equation on a discrete time set, where the driving Hölder rough
path is a realization of a stochastic process. Using a modification of Davie's approach (Cong …

Nonautonomous Young differential equations revisited

ND Cong, LH Duc, PT Hong - Journal of dynamics and differential …, 2018 - Springer
In this paper we prove that under mild conditions a nonautonomous Young differential
equation possesses a unique solution which depends continuously on initial conditions. The …

Nonparametric estimation in fractional SDE

F Comte, N Marie - Statistical Inference for Stochastic Processes, 2019 - Springer
This paper deals with the consistency and a rate of convergence for a Nadaraya–Watson
estimator of the drift function of a stochastic differential equation driven by an additive …

[HTML][HTML] Rough differential equations driven by signals in Besov spaces

DJ Prömel, M Trabs - Journal of Differential Equations, 2016 - Elsevier
Rough differential equations are solved for signals in general Besov spaces unifying in
particular the known results in Hölder and p-variation topology. To this end the …

Asymptotic dynamics of Young differential equations

LH Duc, PT Hong - Journal of Dynamics and Differential Equations, 2023 - Springer
We provide a unified analytic approach to study the asymptotic dynamics of Young
differential equations, using the framework of random dynamical systems and random …

[HTML][HTML] Sensitivity of rough differential equations: an approach through the Omega lemma

L Coutin, A Lejay - Journal of Differential Equations, 2018 - Elsevier
The Itô map gives the solution of a Rough Differential Equation, a generalization of an
Ordinary Differential Equation driven by an irregular path, when existence and uniqueness …

Pathwise methods in regularisation by noise

L Galeati - 2022 - bonndoc.ulb.uni-bonn.de
This thesis concerns the study of regularisation by noise phenomena for ODEs and PDEs. In
particular, it focuses on the use of so called pathwise techniques: our aim is to identify …