Variational formulas, Busemann functions, and fluctuation exponents for the corner growth model with exponential weights

T Seppäläinen - arXiv preprint arXiv:1709.05771, 2017 - arxiv.org
These lecture notes discuss several related features of the exactly solvable two-dimensional
corner growth model with exponentially distributed weights. A key property of this model is …

Stochastic homogenization of nonconvex Hamilton-Jacobi equations: a counterexample

B Ziliotto - arXiv preprint arXiv:1512.06375, 2015 - arxiv.org
arXiv:1512.06375v2 [math.AP] 7 Sep 2016 Page 1 arXiv:1512.06375v2 [math.AP] 7 Sep 2016
Stochastic homogenization of nonconvex Hamilton-Jacobi equations: a counterexample Bruno …

Variational formulas and cocycle solutions for directed polymer and percolation models

N Georgiou, F Rassoul-Agha… - … in Mathematical Physics, 2016 - Springer
We discuss variational formulas for the law of large numbers limits of certain models of
motion in a random medium: namely, the limiting time constant for last-passage percolation …

Stochastic homogenization of a nonconvex Hamilton–Jacobi equation

SN Armstrong, HV Tran, Y Yu - Calculus of Variations and Partial …, 2015 - Springer
We present a proof of qualitative stochastic homogenization for a nonconvex Hamilton–
Jacobi equations. The new idea is to introduce a family of “sub-equations” and to control …

Uniqueness and Ergodicity of Stationary Directed Polymers on

C Janjigian, F Rassoul-Agha - Journal of Statistical Physics, 2020 - Springer
We study the ergodic theory of stationary directed nearest-neighbor polymer models on Z^ 2
Z 2, with iid weights. Such models are equivalent to specifying a stationary distribution on …

A shape theorem and a variational formula for the quenched Lyapunov exponent of random walk in a random potential

C Janjigian, S Nurbavliyev… - Annales de l'Institut …, 2022 - projecteuclid.org
We prove a shape theorem and derive a variational formula for the limiting quenched
Lyapunov exponent and the Green's function of random walk in a random potential on a …

Nonconvex homogenization for one-dimensional controlled random walks in random potential

A Yilmaz, O Zeitouni - 2019 - projecteuclid.org
We consider a finite horizon stochastic optimal control problem for nearest-neighbor random
walk {X_i\} on the set of integers. The cost function is the expectation of the exponential of …

Stochastic homogenization of a class of quasiconvex viscous Hamilton-Jacobi equations in one space dimension

A Yilmaz - Journal of Differential Equations, 2021 - Elsevier
We prove homogenization for a class of viscous Hamilton-Jacobi equations in the stationary
& ergodic setting in one space dimension. Our assumptions include most notably the …

A variational formula for the Lyapunov exponent of Brownian motion in stationary ergodic potential

J Rueß - arXiv preprint arXiv:1308.4351, 2013 - arxiv.org
We establish a variational formula for the exponential decay rate of the Green function of
Brownian motion evolving in a random stationary and ergodic nonnegative potential. Such a …

On the first eigenpair of singularly perturbed operators with oscillating coefficients

A Piatnitski, V Rybalko - Communications in Partial Differential …, 2016 - Taylor & Francis
The paper deals with a Dirichlet spectral problem for a singularly perturbed second order
elliptic operator with rapidly oscillating locally periodic coefficients. We study the limit …