The HADES seminar on Tuesday, April 1st, will be at 3:30pm in Room 740.
Speaker: Ryan Martinez
Abstract: The method of normal forms was introduced to PDEs by Shatah, who used it to
study the long time behavior of semilinear Klein Gordon equations and the method
has been widely used in the context of semilinear problems. The modified energy
method of Hunter, Ifrim, Tataru, and Wong extends the idea of normal forms to
quasilinear problems.
In this talk, we will discuss the method of normal forms, the related method
of modified energy, and my recent work which extends these in a novel way. The aim is
to give a selection of nonlinear PDEs which demonstrate in detail how these methods
are used, why they work, and what gains they achieve.