Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial Data

In this paper, I consider the Cauchy problem for the incompressible Navier-Stokes equations in ℝ+n for n≥3 with bounded initial data and derive a priori estimates of the maximum norm of all derivatives of the solution in terms of the maximum norm of the initial data. This paper is a continuation of...

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Main Author: Santosh Pathak
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2021/6686526
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author Santosh Pathak
author_facet Santosh Pathak
author_sort Santosh Pathak
collection DOAJ
description In this paper, I consider the Cauchy problem for the incompressible Navier-Stokes equations in ℝ+n for n≥3 with bounded initial data and derive a priori estimates of the maximum norm of all derivatives of the solution in terms of the maximum norm of the initial data. This paper is a continuation of my work in my previous papers, where the initial data are considered in Tn and ℝn respectively. In this paper, because of the nonempty boundary in our domain of interest, the details in obtaining the desired result are significantly different and more challenging than the work of my previous papers. This challenges arise due to the possible noncommutativity nature of the Leray projector with the derivatives in the direction of normal to the boundary of the domain of interest. Therefore, we only consider one derivative of the velocity field in that direction.
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spelling doaj-art-f59c546a956f48cb9c397aaa51a7869e2025-02-03T05:58:31ZengWileyAbstract and Applied Analysis1085-33751687-04092021-01-01202110.1155/2021/66865266686526Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial DataSantosh Pathak0Department of Mathematics, University of Utah Asia Campus, 119-3 Songdo Moonhwa-Ro Yeonsu-Gu, Incheon, 21985, Republic of KoreaIn this paper, I consider the Cauchy problem for the incompressible Navier-Stokes equations in ℝ+n for n≥3 with bounded initial data and derive a priori estimates of the maximum norm of all derivatives of the solution in terms of the maximum norm of the initial data. This paper is a continuation of my work in my previous papers, where the initial data are considered in Tn and ℝn respectively. In this paper, because of the nonempty boundary in our domain of interest, the details in obtaining the desired result are significantly different and more challenging than the work of my previous papers. This challenges arise due to the possible noncommutativity nature of the Leray projector with the derivatives in the direction of normal to the boundary of the domain of interest. Therefore, we only consider one derivative of the velocity field in that direction.http://dx.doi.org/10.1155/2021/6686526
spellingShingle Santosh Pathak
Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial Data
Abstract and Applied Analysis
title Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial Data
title_full Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial Data
title_fullStr Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial Data
title_full_unstemmed Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial Data
title_short Maximum Norm Estimates of the Solution of the Navier-Stokes Equations in the Halfspace with Bounded Initial Data
title_sort maximum norm estimates of the solution of the navier stokes equations in the halfspace with bounded initial data
url http://dx.doi.org/10.1155/2021/6686526
work_keys_str_mv AT santoshpathak maximumnormestimatesofthesolutionofthenavierstokesequationsinthehalfspacewithboundedinitialdata