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arxiv: 1509.02571 · v1 · pith:DVQGU6QRnew · submitted 2015-09-08 · 🧮 math.AP

Regularity of the free boundary for two-phase problems governed by divergence form equations and applications

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keywords freeboundarydivergenceequationsformgovernedproblemstwo-phase
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We study a class of two-phase inhomogeneous free boundary problems governed by elliptic equations in divergence form. In particular we prove that Lipschitz or flat free boundaries are $C^{1,\gamma}$. Our results apply to the classical Prandtl-Bachelor model in fluiddynamics.

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