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) |
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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