Martingale solutions to the stochastic thin-film equation in two dimensions
ANNALES DE L INSTITUT HENRI POINCARE-PROBABILITES ET STATISTIQUES(2024)
Abstract
We construct solutions to the stochastic thin-film equation with quadratic mobility and Stratonovich gradient noise in the physically relevant dimension d = 2 and allow in particular for solutions with non -full support. The construction relies on a Trotter- Kato time -splitting scheme, which was recently employed in d = 1. The additional analytical challenges due to the higher spatial dimension are overcome using alpha-entropy estimates and corresponding tightness arguments.
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Key words
Thin-film equation,Noise,alpha-Entropy estimates,Stochastic compactness method
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