Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditions

We prove the existence of weak solutions for steady flows of electrorheological fluids with homogeneous Navier-slip type boundary conditions provided $p(x)>2n/(n+2)$. To prove this, we show Poincaré- and Korn-type inequalities, and then construct Lipschitz truncation functions preserving the...

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Main Authors: Cholmin Sin, Sin-Il Ri
Format: Article
Language:English
Published: Institute of Mathematics of the Czech Academy of Science 2022-12-01
Series:Mathematica Bohemica
Subjects:
Online Access:http://mb.math.cas.cz/full/147/4/mb147_4_9.pdf
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author Cholmin Sin
Sin-Il Ri
author_facet Cholmin Sin
Sin-Il Ri
author_sort Cholmin Sin
collection DOAJ
description We prove the existence of weak solutions for steady flows of electrorheological fluids with homogeneous Navier-slip type boundary conditions provided $p(x)>2n/(n+2)$. To prove this, we show Poincaré- and Korn-type inequalities, and then construct Lipschitz truncation functions preserving the zero normal component in variable exponent Sobolev spaces.
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spelling doaj.art-a3b85d0359f1493aaa3abe94a47d0b022022-12-22T04:35:26ZengInstitute of Mathematics of the Czech Academy of ScienceMathematica Bohemica0862-79592464-71362022-12-01147456758510.21136/MB.2022.0200-20MB.2022.0200-20Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditionsCholmin SinSin-Il RiWe prove the existence of weak solutions for steady flows of electrorheological fluids with homogeneous Navier-slip type boundary conditions provided $p(x)>2n/(n+2)$. To prove this, we show Poincaré- and Korn-type inequalities, and then construct Lipschitz truncation functions preserving the zero normal component in variable exponent Sobolev spaces.http://mb.math.cas.cz/full/147/4/mb147_4_9.pdf existence of weak solutions electrorheological fluid lipschitz truncation variable exponent
spellingShingle Cholmin Sin
Sin-Il Ri
Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditions
Mathematica Bohemica
existence of weak solutions
electrorheological fluid
lipschitz truncation
variable exponent
title Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditions
title_full Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditions
title_fullStr Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditions
title_full_unstemmed Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditions
title_short Existence of weak solutions for steady flows of electrorheological fluid with Navier-slip type boundary conditions
title_sort existence of weak solutions for steady flows of electrorheological fluid with navier slip type boundary conditions
topic existence of weak solutions
electrorheological fluid
lipschitz truncation
variable exponent
url http://mb.math.cas.cz/full/147/4/mb147_4_9.pdf
work_keys_str_mv AT cholminsin existenceofweaksolutionsforsteadyflowsofelectrorheologicalfluidwithnaviersliptypeboundaryconditions
AT sinilri existenceofweaksolutionsforsteadyflowsofelectrorheologicalfluidwithnaviersliptypeboundaryconditions