Blow-up and scattering in the focusing dispersive equations.
Presenter
August 21, 2015
Keywords:
- focusing NLS
- supercritical regime
- finite variance
- invariant solution set
- ground state energy estimate
MSC:
- 35Q55
- 35Qxx
- 35G20
- 35P30
- 35P25
- 35B44
- 35Bxx
- 35B33
Abstract
We study the focusing nonlinear Schrodinger equation with finite energy and finite variance initial data. While considering the mass-supercritical regime we investigate solutions above the energy (or mass-energy) threshold, i.e., when the nergy of the solution exceeds the energy of the so-called ground state. We extend the known scattering versus blow-up dichotomy above the energy threshold for finite variance solutions in the energy-subcritical and energy-critical regimes, characterizing invariant sets of solutions (with either scattering or blow-up in finite time behavior) possibly with arbitrary large mass and energy. We investigate other dispersive equations in a similar manner.