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Partial differential equations (PDEs): Existence and uniqueness, regularity, boundary conditions, linear and non-linear operators, stability, soliton theory, integrable PDEs, conservation laws, qualitative dynamics.

2 votes
1 answer
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Existence of solution to Cauchy boundary value problem in Lipschitz class of functions

For a research question I have run into the following problem that seems intuitively true but I do not know how to prove it and am not sure in which generality. Let $\Omega\subset \mathbb{R}^2$ be a s …
Bobby Nik's user avatar
1 vote

Existence of solution to Cauchy boundary value problem in Lipschitz class of functions

Just for posterity, the concept I was looking for is that of Lipschitz extensions. It turns out that a $K$-Lipschitz function outside any $\Omega$ can be extended to $\Omega$ with the same Lipschitz c …
Bobby Nik's user avatar