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Manasvi Lingam (Harvard University, USA)
Date & Time
Wed, 23 May 2018, 16:00 to 17:00
Emmy Noether Seminar Room, ICTS Campus, Bangalore

There exist a wide range of models in plasma physics, the simplest of which is ideal magnetohydrodynamics (MHD). I will begin this talk by describing the derivation of the action principle and Hamiltonian formulations of ideal MHD, in Lagrangian and Eulerian variables respectively. This will be followed by a discussion of the differences between "beyond MHD" models and MHD, and a presentation of the Hamiltonian formulations for the former. Next, I will explain how the Hamiltonian approach enables us to find interesting correspondences between the various "beyond MHD" models that possess mutually exclusive terms in their dynamical equations. I will conclude my talk with a brief synopsis of the many advantages inherent in the Hamiltonian and Action Principle formulations of charged fluids.