Abstract
Some of the mathematical properties of the interface between two incompressible inviscid and immiscible fluids with different densities under the influence of a constant gravity field g are investigated. The purpose of this paper is to prove that linearly unstable modes for Rayleigh–Taylor instabilities give birth to nonlinear instabilities for the full nonlinear system. The main ingredient is a general instability theorem in an analytic framework which enables us to go from linear to nonlinear instabilities.
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Desjardins, B., Grenier, E. On Nonlinear Rayleigh–Taylor Instabilities. Acta Math Sinica 22, 1007–1016 (2006). https://doi.org/10.1007/s10114-005-0559-8
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DOI: https://doi.org/10.1007/s10114-005-0559-8