A geometric improvement of the velocity-pressure local regularity criterion for a suitable weak solution to the Navier-Stokes equations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F14%3A00440826" target="_blank" >RIV/67985840:_____/14:00440826 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

A geometric improvement of the velocity-pressure local regularity criterion for a suitable weak solution to the Navier-Stokes equations

Original language description

We deal with a suitable weak solution $(bold v,p)$ to the Navier-Stokes equations in a domain $Omegasubsetmathbb R^3$. We refine the criterion for the local regularity of this solution at the point $(bold fx_0,t_0)$, which uses the $L^3$-norm of $bold v$and the $L^{3/2}$-norm of $p$ in a shrinking backward parabolic neighbourhood of $(bold x_0,t_0)$. The refinement consists in the fact that only the values of $bold v$, respectively $p$, in the exterior of a space-time paraboloid with vertex at $(bold x_0,t_0)$, respectively in a "small" subset of this exterior, are considered. The consequence is that a singularity cannot appear at the point $(bold x_0,t_0)$ if $bold v$ and $p$ are "smooth" outside the paraboloid.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BA - General mathematics

OECD FORD branch

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Project

<a href="/en/project/GA13-00522S" target="_blank" >GA13-00522S: Qualitative analysis and numerical solution of problems of flows in generally time-dependent domains with various boundary conditions</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Mathematica Bohemica

ISSN

0862-7959

e-ISSN

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Volume of the periodical

139

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

14

Pages from-to

685-698

UT code for WoS article

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EID of the result in the Scopus database

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