The large box limit for 2D NLS

The large box limit for 2D NLS

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Pierre Germain, Courant Institute of Mathematical Sciences
Fine Hall 314

I will report on work in progress, in collaboration with Zaher Hani and Erwan Faou. Starting from 2D NLS set on the torus, we derive, in the appropriate weakly nonlinear regime, a new asymptotic model set in the whole space. The limiting system has very striking properties and is related to weak turbulence questions.