This monograph contains the notes of lectures I gave in Saint Flour Probability Summer School in July 2016. The two other courses were given by Paul Bourgade and by Scott …
We consider nonlinear parabolic SPDEs of the form \partial_tu=\calLu+σ(u)̇w, where ̇w denotes space-time white noise, σ:R→R is globally Lipschitz continuous, and \calL is the …
Polymer chains that interact with themselves and/or with their environment are fascinating objects, displaying a range of interesting physical and chemical phenomena. The focus in …
R Allez, K Chouk - arXiv preprint arXiv:1511.02718, 2015 - arxiv.org
We define the Anderson hamiltonian on the two dimensional torus $\mathbb R^ 2/\mathbb Z^ 2$. This operator is formally defined as $\mathscr H:=-\Delta+\xi $ where $\Delta $ is the …
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 …
We consider the stochastic heat equation of the following form:\begin {equation*}\frac {\partial}{\partial t} u_t (x)=(\mathcal {L} u_t)(x)+ b (u_t (x))+\sigma (u_t (x))\dot {F} _t …
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 …
M Birkner, R Sun - Annales de l'IHP Probabilités et statistiques, 2010 - numdam.org
We study a random walk pinning model, where conditioned on a simple random walk Y on Zd acting as a random medium, the path measure of a second independent simple random …
W König, H Lacoin, P Mörters, N Sidorova - 2009 - projecteuclid.org
The parabolic Anderson problem is the Cauchy problem for the heat equation∂ tu (t, z)= Δ u (t, z)+ ξ (z) u (t, z) on (0,∞)× ℤ d with random potential (ξ (z): z∈ ℤ d). We consider …