Thermodynamic limit for directed polymers and stationary solutions of the Burgers equation

Y Bakhtin, L Li - Communications on Pure and Applied …, 2019 - Wiley Online Library
The first goal of this paper is to prove multiple asymptotic results for a time‐discrete and
space‐continuous polymer model of a random walk in a random potential. These results …

Quenched free energy and large deviations for random walks in random potentials

F Rassoul‐Agha, T Seppäläinen… - … on Pure and Applied …, 2013 - Wiley Online Library
We study quenched distributions on random walks in a random potential on integer lattices
of arbitrary dimension and with an arbitrary finite set of admissible steps. The potential can …

Quenched point-to-point free energy for random walks in random potentials

F Rassoul-Agha, T Seppäläinen - Probability Theory and Related Fields, 2014 - Springer
We consider a random walk in a random potential on a square lattice of arbitrary dimension.
The potential is a function of an ergodic environment and steps of the walk. The potential is …

Selected topics in random walks in random environment

A Drewitz, AF Ramírez - Topics in percolative and disordered systems, 2014 - Springer
Random walk in random environment (RWRE) is a fundamental model of statistical
mechanics, describing the movement of a particle in a highly disordered and …

Large deviations and wandering exponent for random walk in a dynamic beta environment

M Balázs, F Rassoul-Agha, T Seppäläinen - 2019 - projecteuclid.org
Random walk in a dynamic iid beta random environment, conditioned to escape at an
atypical velocity, converges to a Doob transform of the original walk. The Doob-transformed …

Stochastic homogenization of viscous Hamilton–Jacobi equations and applications

S Armstrong, H Tran - Analysis & PDE, 2015 - msp.org
We present stochastic homogenization results for viscous Hamilton–Jacobi equations using
a new argument that is based only on the subadditive structure of maximal subsolutions (ie …

Variational formulas and disorder regimes of random walks in random potentials

F Rassoul-Agha, T Seppäläinen, A Yilmaz - Bernoulli, 2017 - JSTOR
We give two variational formulas (qVar1) and (qVar2) for the quenched free energy of a
random walk in random potential (RWRP) when (i) the underlying walk is directed or …

Quenched and averaged large deviations for random walks in random environments: The impact of disorder

R Bazaes, C Mukherjee, AF Ramírez… - The Annals of Applied …, 2023 - projecteuclid.org
In 2003, Varadhan (Comm. Pure Appl. Math. 56 (2003) 1222–1245) developed a robust
method for proving quenched and averaged large deviations for random walks in a …

Process-level quenched large deviations for random walk in random environment

F Rassoul-Agha, T Seppäläinen - Annales de l'IHP Probabilités et …, 2011 - numdam.org
We consider a bounded step size random walk in an ergodic random environment with
some ellipticity, on an integer lattice of arbitrary dimension. We prove a level 3 large …

Differing averaged and quenched large deviations for random walks in random environments in dimensions two and three

A Yilmaz, O Zeitouni - Communications in Mathematical Physics, 2010 - Springer
We consider the quenched and the averaged (or annealed) large deviation rate functions I q
and I a for space-time and (the usual) space-only RWRE on Z^ d. By Jensen's inequality, I …