Ergodicity of stochastic Burgers equation in unbounded domains with space-time white noise
arxiv(2024)
摘要
In this paper, we investigate the stochastic Burgers equation with
multiplicative noise defined on the entire real line. The equation can be
expressed as follows:
∂ u∂ t=∂^2
u∂ x^2-ku +12∂ u^2∂
x+σ(u)∂^2 W∂ t∂ x.
The noise is characterized as space-time white noise. We establish that
the solution remains uniformly bounded in time. Furthermore, by employing the
Krylov-Bogolioubov theorem, we establish the existence of invariant measures
for this equation. Additionally, we demonstrate the uniqueness of invariant
measures by utilizing the strong Feller and irreducible properties.
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