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Stability of Stationary Solutions of the Lagrangian averaged Euler Equations in 2D.

Student-Run Research Seminar

Speaker: James Peirce, UC Davis Mathematics Dept.
Location: 693 Kerr
Start time: Mon, May 13 2002, 11:00AM

I will give sufficient conditions for the stability of 2D stationary flows of the Lagrangian averaged Euler (LAE-\alpha) equations. As with the Euler equations, the LAE-\alpha equations define an infinite-dimensional Hamiltonian system and therefore a linear method cannot give the conclusive results for the stability. I will use the Energy-Casimir method to determine the criterion for stability.