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Non-uniqueness of H\"older continuous solutions for Inhomogeneous Incompressible Euler flows https://arxiv.org/abs/2407.15884 #mathAP

Non-uniqueness of Hölder continuous solutions for Inhomogeneous Incompressible Euler flows

We consider the inhomogeneous (or density dependent) incompressible Euler equations in a three-dimensional periodic domain. We construct density $\varrho$ and velocity $u$ such that, for any $α<1/7$, both of them are $α$-Hölder continuous and $(\varrho, u)$ is a weak solution to the underlying equations. The proof is based on typical convex integration techniques using Mikado flows as building blocks. As a main novelty with respect to the related literature, our result produces a Hölder continuous density.

arxiv.org
July 25, 2024 at 3:10 AM · · feed2toot · 0 · 0 · 0
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