Plane-like minimizers for a non-local Ginzburg-Landau-type energy in a periodic medium

Autor: Matteo Cozzi, Enrico Valdinoci
Rok vydání: 2017
Předmět:
Zdroj: Journal de l’École polytechnique — Mathématiques. 4:337-388
ISSN: 2270-518X
DOI: 10.5802/jep.45
Popis: where K : Rn × Rn → [0,+∞] is a measurable kernel comparable to that of the fractional Laplacian of order 2s, with s ∈ (0, 1), and W : Rn × R→ [0,+∞) is a smooth double-well potential, with zeroes at u = ±1. Both K and W are assumed to be Zn-periodic. For any vector ω ∈ Rn \{0}, we prove the existence of a minimizer uω of E that is directed along ω and whose interface {|uω| 0. Moreover, uω enjoys a suitable periodicity/almost-periodicity property, in dependence of whether ω is rational or not. As a result, we obtain the existence of plane-like entire solutions to the integro-differential Euler-Lagrange equation corresponding to E .
Databáze: OpenAIRE