#### Contact Information:

einsteinchair@gc.cuny.edu

# Einstein Chair Mathematics Seminar

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## Speaker: Francisco Torres de Lizaur, University of Toronto Time: 6:30p-8:30p Title: Approaching 2D steady flows Abstract: Given a function on a surface, can we rearrange it by means of an era preserving diffeomorphism, so that it becomes the vorticity of a steady Euler flow? The answer is: not always (Khesin and Ginzburg, 1994; Khesin and Izosimov, 2017). Still, can we rearrange it so that it is very close? This is the main question we will address in this talk.

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