# American Institute of Mathematical Sciences

September  2008, 7(5): 1179-1191. doi: 10.3934/cpaa.2008.7.1179

## Global existence of solutions for subcritical quasi-geostrophic equations

 1 Département de Mathématiques, Faculté des Sciences de Bizerte, Tunisia 2 Département de Mathématiques, Faculté des Sciences de Monastir, Tunisia

Received  May 2007 Revised  January 2008 Published  June 2008

We prove the persistence of the regularity in the Besov norm spaces for the solutions of the subcritical Quasi-Geostrophic Equations with small size initial data in $\dot B^{-(2\alpha-1),\infty}_\infty$.
Citation: May Ramzi, Zahrouni Ezzeddine. Global existence of solutions for subcritical quasi-geostrophic equations. Communications on Pure and Applied Analysis, 2008, 7 (5) : 1179-1191. doi: 10.3934/cpaa.2008.7.1179
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