Journal of Convex Analysis 31 (2024), No. 2, 477--496
Copyright Heldermann Verlag 2024
Stochastic Homogenization of a Class of Quasiconvex and Possibly Degenerate Viscous HJ Equations in 1D
Andrea Davini
Dipartimento di Matematica, Università La Sapienza, Roma, Italy
davini@mat.uniroma1.it
We prove homogenization for possibly degenerate viscous Hamilton-Jacobi equations with a Hamiltonian of the form G(p)+V(x, ω), where G is a quasiconvex, locally Lipschitz function with superlinear growth, the potential V(x, ω) is bounded and Lipschitz continuous, and the diffusion coefficient a(x, ω) is allowed to vanish on some regions or even on the whole of R. The class of random media we consider is defined by an explicit scaled hill condition on the pair (a,V) which is fulfilled as long as the environment is not "rigid".
Keywords: Viscous Hamilton-Jacobi equation, stochastic homogenization, stationary ergodic random environment, sublinear corrector, viscosity solution, scaled hill and valley condition.
MSC: 35B27, 35F21, 60G10.
[ Fulltext-pdf (188 KB)] for subscribers only.