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Behavior of solutions of 2D quasi-geostrophic equations. (English) Zbl 0957.76093
The authors establish global existence and uniqueness of solutions of a family of equations of quasigeostrophic type. They also investigate long-time approximations to these solutions by solutions of the corresponding linearized equations. The paper is essentially of mathematical interest.

MSC:
76U05 General theory of rotating fluids
35Q35 PDEs in connection with fluid mechanics
86A05 Hydrology, hydrography, oceanography
86A10 Meteorology and atmospheric physics
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