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SUMMARY:Once again about the parallel between stratification and rotation 
 in hydrodynamics and between both and external magnetic field in MHD - Zei
 tlin\, V (LMD-ENS)
DTSTART:20081211T160000Z
DTEND:20081211T163000Z
UID:TALK15638@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:On the example of simplified 2D models I will discuss the math
 ematical background of the well-known parallel between the effects of stra
 tification\, rotation and external magnetic field. Special emphasis will b
 e made on the fact that Hamiltonian structure of the corresponding hydrody
 namical systems is the same\, and the consequences of this fact in what co
 ncerns both the coherent structures (stationary nonlinear waves/vortices) 
 and the equilibrium spectra of wave turbulence of anisotropic waves proper
  to each effect (internal gravity waves\, gyroscopic waves\, and Alfven wa
 ves\, respectively)
LOCATION:Seminar Room 1\, Newton Institute
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