A Large Deviation Principle for the Stochastic Heat Equation with General Rough Noise
نویسندگان
چکیده
We study the Freidlin–Wentzell large deviation principle for nonlinear one-dimensional stochastic heat equation driven by a Gaussian noise: $$\begin{aligned} \frac{\partial u^{{\varepsilon }}(t,x)}{\partial t}=\frac{\partial ^2 x^2}+\sqrt{{\varepsilon }}\sigma (t, x, }}(t,x))\dot{W}(t,x),\quad t> 0,\, x\in \mathbb {R}, \end{aligned}$$ where $$\dot{W}$$ is white in time and fractional space with Hurst parameter $$H\in \left( \frac{1}{4},\frac{1}{2}\right) $$ . Recently, Hu Wang (Ann Inst Henri Poincaré Probab Stat 58(1):379–423, 2022) have studied well-posedness of this without technical condition $$\sigma (0)=0$$ which was previously assumed et al. 45(6):4561–4616, 2017). adopt new sufficient proposed Matoussi (Appl Math Optim 83(2):849–879, 2021) weak convergence criterion principle.
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ژورنال
عنوان ژورنال: Journal of Theoretical Probability
سال: 2023
ISSN: ['1572-9230', '0894-9840']
DOI: https://doi.org/10.1007/s10959-022-01228-3