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Monge-Ampère Structures and the Geometry of Incompressible Flows

Abstract :

We show how a symmetry reduction of the equations for incompressible hydrodynamics in three dimensions leads naturally to a Monge-Amp\`ere structure, and Burgers'-type vortices are a canonical class of solutions associated with this structure. The mapping of such solutions, which are characterised by a linear dependence of the third component of the velocity on the coordinate defining the axis of rotation, to solutions of the incompressible equations in two dimensions is also shown to be an example of a symmetry reduction The Monge-Amp\`ere structure for incompressible flow in two dimensions is shown to be hypersymplectic.

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https://hal.archives-ouvertes.fr/hal-01228550
Contributor : Okina Université d'Angers <>
Submitted on : Friday, November 13, 2015 - 1:42:30 PM
Last modification on : Wednesday, April 1, 2020 - 1:57:19 AM

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1510.02327v2.pdf
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  • HAL Id : hal-01228550, version 2
  • OKINA : ua14193

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Bertrand Banos, Vladimir Roubtsov, Ian Roulstone. Monge-Ampère Structures and the Geometry of Incompressible Flows. 2015. ⟨hal-01228550v2⟩

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