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Title:
Fluids, vortex sheets, and skew-mean-curvature flows

Speaker:
Boris Khesin

Abstract:
We show that an approximation of the hydrodynamical Euler equation describes the skew-mean-curvature flow on vortex membranes in any dimension. This generalizes the classical binormal, or vortex filament, equation in 3D. We present a Hamiltonian framework for higher-dimensional vortex filaments and vortex sheets as singular 2-forms with support of codimensions 2 and 1, respectively. This framework, in particular, allows one to define symplectic structures on the spaces of vortex sheets.

Link:
https://www.msri.org/workshops/656/schedules/17689

Workshop:
MSRI- Fluid Mechanics, Hamiltonian Dynamics, and Numerical Aspects of Optimal Transportation