Vol. 11, No. 4, 2018

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Global weak solutions for generalized SQG in bounded domains

Huy Quang Nguyen

Vol. 11 (2018), No. 4, 1029–1047

We prove the existence of global L2 weak solutions for a family of generalized inviscid surface quasigeostrophic (SQG) equations in bounded domains of 2 . In these equations, the active scalar is transported by a velocity field which is determined by the scalar through a more singular nonlocal operator compared to the SQG equation. The result is obtained by establishing appropriate commutator representations for the weak formulation together with good bounds for them in bounded domains.

generalized SQG, global weak solutions, bounded domains
Mathematical Subject Classification 2010
Primary: 35Q35, 35Q86
Received: 7 April 2017
Revised: 28 July 2017
Accepted: 16 October 2017
Published: 12 January 2018
Huy Quang Nguyen
Program in Applied and Computational Mathematics
Princeton University
Princeton, NJ
United States