dorsal/arxiv
View SchemaLocal-in-time strong solvability of Navier--Stokes type variational inequalities by Rothe's method
| Authors | Takahito Kashiwabara |
|---|---|
| Categories | |
| ArXiv ID | 2601.09190vv1 |
| URL | https://arxiv.org/abs/2601.09190 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
We consider parabolic variational inequalities in a Hilbert space $V$, which have a non-monotone nonlinearity of Navier--Stokes type represented by a bilinear operator $B: V \times V \to V'$ and a monotone type nonlinearity described by a convex, proper, and lower-semicontinuous functional $\varphi : V \to (-\infty, +\infty]$. Existence and uniqueness of a local-in-time strong solution in a maximal-$L^2$-regularity class and in a Kiselev--Ladyzhenskaya class are proved by discretization in time (also known as Rothe's method), provided that a corresponding stationary Stokes problem admits a regularity structure better than $V$ (which is typically $H^2$-regularity in case of the Navier--Stokes equations). Since we do not assume the cancelation property $\left< B(u, v), v \right> = 0$, in applications we may allow for broader boundary conditions than those treated by the existing literature.
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"abstract": "We consider parabolic variational inequalities in a Hilbert space $V$, which have a non-monotone nonlinearity of Navier--Stokes type represented by a bilinear operator $B: V \\times V \\to V\u0027$ and a monotone type nonlinearity described by a convex, proper, and lower-semicontinuous functional $\\varphi : V \\to (-\\infty, +\\infty]$. Existence and uniqueness of a local-in-time strong solution in a maximal-$L^2$-regularity class and in a Kiselev--Ladyzhenskaya class are proved by discretization in time (also known as Rothe\u0027s method), provided that a corresponding stationary Stokes problem admits a regularity structure better than $V$ (which is typically $H^2$-regularity in case of the Navier--Stokes equations). Since we do not assume the cancelation property $\\left\u003c B(u, v), v \\right\u003e = 0$, in applications we may allow for broader boundary conditions than those treated by the existing literature.",
"arxiv_id": "2601.09190",
"authors": [
"Takahito Kashiwabara"
],
"categories": [
"math.AP"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Local-in-time strong solvability of Navier--Stokes type variational inequalities by Rothe\u0027s method",
"url": "https://arxiv.org/abs/2601.09190",
"version": "v1"
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