Uniformly attracting limit sets for the critically dissipative SQG equation

Peter Constantin, Michele Coti Zelati, Vlad Vicol

Research output: Contribution to journalArticlepeer-review


We consider the global attractor of the critical surface quasi-geostrophic (SQG) semigroup S(t) on the scale-invariant space H1(double-struck T2). It was shown in [15] that this attractor is finite dimensional, and that it attracts uniformly bounded sets in H1+δ(double-struck T2) for any δ > 0, leaving open the question of uniform attraction in H1(double-struck T2). In this paper we prove the uniform attraction in H1(double-struck T2), by combining ideas from the De Giorgi iteration and nonlinear maximum principles.

Original languageEnglish (US)
Article number298
Pages (from-to)298-318
Number of pages21
Issue number2
StatePublished - Jan 13 2016


  • De Giorgi
  • global attractor
  • nonlinear maximum principle
  • surface quasi-geostrophic equation

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • General Physics and Astronomy
  • Applied Mathematics


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