Geometric characterization of intermittency in the parabolic Anderson model

J Gärtner, W König, S Molchanov - 2007 - projecteuclid.org
We consider the parabolic Anderson problem∂ tu= Δ u+ ξ (x) u on ℝ+× ℤ d with localized
initial condition u (0, x)= δ 0 (x) and random iid potential ξ. Under the assumption that the …

Parabolic problems for the Anderson model: II. Second-order asymptotics and structure of high peaks

J Gärtner, SA Molchanov - Probability theory and related fields, 1998 - Springer
This is a continuation of our previous work [6] on the investigation of intermittency for the
parabolic equation (∂/∂ t) u= H u on ℝ+× ℤ d associated with the Anderson Hamiltonian …

Stationary parabolic Anderson model and intermittency

RA Carmona, SA Molchanov - Probability theory and related fields, 1995 - Springer
This paper is devoted to the analysis of the large time behavior of the solutions of the
Anderson parabolic problem: ∂ u ∂ t= κ Δ u ξ (x) u when the potential ξ (x) is a …

Correlation structure of intermittency in the parabolic Anderson model

J Gärtner, F den Hollander - Probability theory and related fields, 1999 - Springer
Consider the Cauchy problem∂ u (x, t)/∂ t= ℋ u (x, t)(x∈ ℤ d, t≥ 0) with initial condition u
(x, 0)≡ 1 and with ℋ the Anderson Hamiltonian ℋ= κΔ+ ξ. Here Δ is the discrete Laplacian …

The universality classes in the parabolic Anderson model

R van der Hofstad, W König, P Mörters - Communications in mathematical …, 2006 - Springer
We discuss the long time behaviour of the parabolic Anderson model, the Cauchy problem
for the heat equation with random potential on Z^ d. We consider general iid potentials and …

Moment asymptotics for the continuous parabolic Anderson model

J Gärtner, W König - Annals of Applied Probability, 2000 - JSTOR
We consider the parabolic Anderson problem∂ tu= κΔ u+ ξ (x) u on R+× Rd with initial
condition u (0, x)= 1. Here ξ (·) is a random shift-invariant potential having high δ-like peaks …

[HTML][HTML] The parabolic Anderson model on the hypercube

L Avena, O Gün, M Hesse - Stochastic Processes and their Applications, 2020 - Elsevier
We consider the parabolic Anderson model∂∂ tvn= κ Δ nv n+ ξ nvn on the n-dimensional
hypercube {− 1,+ 1} n with random iid potential ξ n. We study vn at the location of the k th …

Parabolic problems for the Anderson model: I. Intermittency and related topics

J Gärtner, SA Molchanov - Communications in mathematical physics, 1990 - Springer
The objective of this paper is a mathematically rigorous investigation of intermittency and
related questions intensively studied in different areas of physics, in particular in …

Quenched to annealed transition in the parabolic Anderson problem

M Cranston, S Molchanov - Probability theory and related fields, 2007 - Springer
We study limit behavior for sums of the form 1| L| x ∈ L u (t, x), where the
field\Lambda_L=\left {x ∈ Z^ d:| x| ≤ L\right\} is composed of solutions of the parabolic …

The parabolic Anderson model with heavy-tailed potential

P Mörters - Surveys in stochastic processes, EMS Ser. Congr …, 2011 - books.google.com
(Aƒ)(z)= Σ [ƒ (y)− f (z)], for ze Zd, ƒ: Zd→ R yezd ly-z= 1 is the discrete Laplacian, and the
potential (§ (z): z€ Zd) is a collection of independent identically distributed random variables …