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Lagrangian solutions for semigeostrophic system in physical space

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Mathematics for the Fluid Earth

Co-author: Adrian Tudorascu

In this introductory talk, we review results on existence of solutions to semigeostrophic system in physical and dual spaces. In particular, we show that Lagrangian solutions in physical space can be constructed for initial data satisfying a strict convexity condition. We also briefly discuss the recent joint work with A. Tudorascu, in which we relax the notion of Lagrangian solution to obtain existence for all convex initial data in physical space.

This talk is part of the Isaac Newton Institute Seminar Series series.

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