Temporal asymptotics for fractional parabolic Anderson model

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Temporal asymptotics for fractional parabolic Anderson model

In this paper, we consider fractional parabolic equation of the form ∂u ∂t = −(−∆) α 2 u+ uẆ (t, x), where −(−∆)α2 with α ∈ (0, 2] is a fractional Laplacian and Ẇ is a Gaussian noise colored in space and time. The precise moment Lyapunov exponents for the Stratonovich solution and the Skorohod solution are obtained by using a variational inequality and a Feynman-Kac type large deviation result ...

متن کامل

The Parabolic Anderson Model

This is a survey on the intermittent behavior of the parabolic Anderson model, which is the Cauchy problem for the heat equation with random potential on the lattice Z. We first introduce the model and give heuristic explanations of the long-time behavior of the solution, both in the annealed and the quenched setting for time-independent potentials. We thereby consider examples of potentials st...

متن کامل

Annealed Asymptotics for the Parabolic Anderson Model with a Moving Catalyst

This paper deals with the solution u to the parabolic Anderson equation ∂u/∂t = κ∆u+ξu on the lattice Zd. We consider the case where the potential ξ is time-dependent and has the form ξ(t, x) = δ0(x − Yt) with Yt being a simple random walk with jump rate 2d̺. The solution u may be interpreted as the concentration of a reactant under the influence of a single catalyst particle Yt. In the first pa...

متن کامل

4 the Parabolic Anderson Model

This is a survey on the intermittent behavior of the parabolic Anderson model, which is the Cauchy problem for the heat equation with random potential on the lattice Z. We first introduce the model and give heuristic explanations of the long-time behavior of the solution, both in the annealed and the quenched setting for time-independent potentials. We thereby consider examples of potentials st...

متن کامل

A Singular Parabolic Anderson Model

We consider the following stochastic partial differential equation: ∂u ∂t = 1 2 ∆u + κu ˙ F , for x ∈ R d in dimension d ≥ 3, where ˙ F (t, x) is a mean zero Gaussian noise with the singular covariance E ˙ F (t, x) ˙ F (t, y) = δ(t − s) |x − y| 2. Solutions u t (dx) exist as singular measures, under suitable assumptions on the initial conditions and for sufficiently small κ. We investigate vari...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Electronic Journal of Probability

سال: 2018

ISSN: 1083-6489

DOI: 10.1214/18-ejp139