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20182026
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19 citations · 61 across the 20 of their papers we have counts for

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math.PR2026

Well-posedness and Hurst parameter estimation for fluid equations driven by fractional transport noise

Alexandra Blessing Neamtu, Dan Crisan, Oana Lang

We study a two-dimensional incompressible vorticity equation on the torus driven by transport-type fractional Brownian noise with Hurst parameter . The model capture…

math.PR2025

A mild rough Gronwall Lemma with applications to non-autonomous evolution equations

Alexandra Blessing, Mazyar Ghani Varzaneh, Tim Seitz

We derive a Gronwall type inequality for mild solutions of non-autonomous parabolic rough partial differential equations (RPDEs). This inequality together with an analysis of the C…

math.PR2023

Existence of smooth stable manifolds for a class of parabolic SPDEs with fractional noise

Xiaofang Lin, Alexandra Neamtu, Caibin Zeng

Little seems to be known about the invariant manifolds for stochastic partial differential equations (SPDEs) driven by nonlinear multiplicative noise. Here we contribute to this as…

math.PR2023

Bifurcation theory for SPDEs: finite-time Lyapunov exponents and amplitude equations

Dirk Blömker, Alexandra Neamtu

We consider a stochastic partial differential equation close to bifurcation of pitchfork type, where a one-dimensional space changes its stability. For finite-time Lyapunov exponen…

math.PR2022

Stochastic evolution equations with rough boundary noise

Alexandra Neamtu, Tim Seitz

We investigate the pathwise well-posedness of stochastic evolution equations perturbed by multiplicative Neumann boundary noise, such as fractional Brownian motion for $H\in(1/3,1/…

math.PR2022★ 1 cited

Quasilinear rough evolution equations

Antoine Hocquet, Alexandra Neamţu

We investigate the abstract Cauchy problem for a quasilinear parabolic equation in a Banach space of the form \( du_t -L_t(u_t)u_t dt = N_t(u_t)dt + F(u_t)\cdot d\mathbf X_t \), wh…