Abstract
We establish blow-up results for systems of NLS equations with quadratic interaction in anisotropic spaces. We precisely show finite time blow-up or grow-up for cylindrical symmetric solutions. With our construction, we moreover prove some polynomial lower bounds on the kinetic energy of global solutions in the mass-critical case, which in turn implies grow-up along any diverging time sequence. Our analysis extends to general NLS systems with quadratic interactions, and it also provides improvements of known results in the radial case.
| Original language | English |
|---|---|
| Article number | 178 |
| Journal | Zeitschrift fur Angewandte Mathematik und Physik |
| Volume | 72 |
| Issue number | 5 |
| Early online date | 4 Sept 2021 |
| DOIs | |
| Publication status | Published - Oct 2021 |
Keywords
- Blow-up
- Grow-up
- Nonlinear Schrödinger systems
- Quadratic-type interactions
ASJC Scopus subject areas
- General Mathematics
- General Physics and Astronomy
- Applied Mathematics