Abstract
We study the nonrelativistic, semiclassical and nonrelativistic- semiclassical limits of the (modulated) nonlinear Klein-Gordon equations from its hydrodynamical structure via WKB analysis. The nonrelativistic-semiclassical limit is proved rigorously by modulated energy method.
| Original language | English |
|---|---|
| Pages (from-to) | 2233-2251 |
| Number of pages | 19 |
| Journal | Discrete and Continuous Dynamical Systems |
| Volume | 32 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2012 |
| Externally published | Yes |
Keywords
- Compressible Euler equations
- Nonlinear Klein-Gordon equation
- Nonlinear Schrödinger equation
- Nonrelativistic limit
- Nonrelativistic-semiclassical limit
- Semiclassical limit
- WKB approximation
- Wave map