[Todos] charla del Prof. Colin Rogers

[pamster en dm.uba.ar]

El proximo viernes 6 de agosto a las 14 hs. el Prof. Colin Rogers dictara
la charla

On Ermakov Structure in 2+1-Dimensional Magnetogasdynamics

Abstract:
An elliptic vortex-type ansatz introduced into a 2+1-dimensional system
governing rotating homentropic magnetogasdynamics with a parabolic gas law
is shown to lead to an eight dimensional nonlinear dynamical system which
admits exact analytic solution in terms of an elliptic integral
representation.A novel magnetogasdynamic analogue of the pulsrodon of
shallow f-plane theory is isolated thereby. In the case of a purely
transverse magnetic field,the general dynamical system is shown to have
underlying Hamiltonian structure of Ermakov -type.Pulsrodon -type
solutions may again constructed.

Lugar: aula de seminario del Departamento de Matematica.

Estan todos cordialmente invitados.

Pablo Amster