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@article{faucris.279008732,
abstract = {We establish existence of nonnegative martingale solutions to stochastic thin-film equations with quadratic mobility for compactly supported initial data under Stratonovich noise. Based on so-called alpha-entropy estimates, we show that almost surely these solutions are classically differentiable in space almost everywhere in time and that their derivative attains the value zero at the boundary of the solution's support. From a physics perspective, this means that they exhibit a zero-contact angle at the three-phase contact line between liquid, solid, and ambient fluid. These alpha-entropy estimates are first derived for almost surely strictly positive solutions to a family of stochastic thin-film equations augmented by second-order linear diffusion terms. Using Ito's formula together with stopping time arguments. Jakubowski's modification of the Skorokhod theorem, and martingale identification techniques, the passage to the limit of vanishing regularization terms gives the desired existence result.},
author = {Grün, Günther and Klein, Lorenz},
doi = {10.1007/s00028-022-00818-2},
faupublication = {yes},
journal = {Journal of Evolution Equations},
keywords = {Stochastic partial differential equation; Degenerate parabolic equation; Fourth-order equation; Thin fluid film; Thermal fluctuations; Stratonovich noise; Martingale solution; Free-boundary problem; Compactly supported initial data},
note = {CRIS-Team WoS Importer:2022-07-29},
peerreviewed = {Yes},
title = {{Zero}-contact angle solutions to stochastic thin-film equations},
volume = {22},
year = {2022}
}