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11:00 am, Thursday, December 14, 2006
Howey conference room N110

Hie Tae Moon
Korea Advance Institute of Science and Technology

Non-equilibrium process in pattern selection

When the question Is the solar system stable? was first raised by King Oscar II, Poincar realized that the question ultimately led us to the fundamental mathematical question Is a periodic orbit stable?How a periodic orbit or state loses its stability in a continuous medium? As a play ground, we consider the Stokes wave, an homogeneous periodic state that appears generically in weakly nonlinear dispersive media, and analyze the non-equilibrium process of pattern formation/selection taking place beyond the threshold of instability. We consider the situation of Hamiltonian limit as well as the situation under dissipation. In both cases we analyze topologically completely the non-equilibrium process associated with patterns, which therefore bears certain generic significance.

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