Regularity aspects of the Navier-Stokes equations in critical spaces
2020-08
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Regularity aspects of the Navier-Stokes equations in critical spaces
Alternative title
Authors
Published Date
2020-08
Publisher
Type
Thesis or Dissertation
Abstract
For better or for worse, our current understanding of the Navier-Stokes regularity problem is intimately connected with certain dimensionless quantities known as critical norms. In this thesis, we concern ourselves with one of the most basic questions about Navier-Stokes regularity: How must the critical norms behave at a potential Navier-Stokes singularity? In Chapter 2, we give a broad overview of the Navier-Stokes theory necessary to answer this question. This chapter is suitable for newcomers to the field. Next, we present two of our published papers [4,5] which answer this question in the context of homogeneous Besov spaces. In Chapter 3, we demonstrate that the critical Besov norms $\| u(\cdot,t) \|_{\dot B^{-1+3/p}_{p,q}(\R^3)}$, $p,q \in (3,+\infty)$, must tend to infinity at a potential singularity. Our proof has been streamlined from the published version [4]. In Chapter 4 (joint work with Tobias Barker), we develop a framework of global weak Besov solutions with initial data belonging to $\dot B^{-1+3/p}_{p,\infty}(\R^3)$, $p \in (3,+\infty)$. To illustrate this framework, we provide applications to blow-up criteria, minimal blow-up initial data, and forward self-similar solutions. This chapter has been reproduced from the published version [5].
Keywords
Description
University of Minnesota Ph.D. dissertation. August 2020. Major: Mathematics. Advisor: Vladimir Sverak. 1 computer file (PDF); ii, 158 pages.
Related to
Replaces
License
Collections
Series/Report Number
Funding information
Isbn identifier
Doi identifier
Previously Published Citation
Other identifiers
Suggested citation
Albritton, Dallas. (2020). Regularity aspects of the Navier-Stokes equations in critical spaces. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/216804.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.