Ramjee Sharma
Abstract:
It remains an open question if all classical solutions of the inviscid surface
quasigeostrophic (SQG) equation are global in time or not.
In this article, this issue is addressed through a geometric approach.
This article contains three sections. The first section introduces the
SQG equation, and presents existing results along with open problems.
The second section presents local uniqueness and existence results of
the SQG equations. Finally, the third section presents several geometric
criteria under which the solutions of the SQG equation become regular
for all time. The relation between the geometry of the level curves and the
regularity of the solutions is the central focus of this part.
Published November 15, 2017.
Math Subject Classifications: 35Q35, 35B65, 76B03.
Key Words: Global regularity; quasigeostrophic equations; geometric criteria.
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Ramjee Sharma Department of Mathematics University of North Georgia 3820 Mundy Mill Rd Oakwood, GA 30566, USA email: ramjee.sharma@ung.edu |
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