Abstract
We study the motion of fronts for an extended version of the nonlinear wave equation, ∈2φtt + ∈2γφt = ∈2 Δφ + f (φ) + ∈h + ∈4ηΔφt with positive ∈ ≪ 1 in cartesian and polar coordinates and give a local description of the front in terms of its normal velocity, acceleration and curvature. We study analytically and numerically the motion of planar and circular fronts and perturbations on them.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 245-265 |
| Number of pages | 21 |
| Journal | Physica D: Nonlinear Phenomena |
| Volume | 136 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Feb 15 2000 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Mathematical Physics
- Condensed Matter Physics
- Applied Mathematics
Keywords
- Born-Infeld equation
- Front motion
- Hyperbolic models
- Kink dynamics