Mathematics – Analysis of PDEs
Scientific paper
2011-09-05
Mathematics
Analysis of PDEs
Scientific paper
We consider a nonlinear evolution problem with an asymptotic parameter and construct examples in which the linearized operator has spectrum uniformly bounded away from Re z >= 0 (that is, the problem is spectrally stable), yet the nonlinear evolution blows up in short times for arbitrarily small initial data. We interpret the results in terms of semiclassical pseudospectrum of the linearized operator: despite having the spectrum in Re z < -c < 0, the resolvent of the linearized operator grows very quickly in parts of the region Re z > 0. We also illustrate the results numerically.
No associations
LandOfFree
Nonlinear Instability in a Semiclassical Problem does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nonlinear Instability in a Semiclassical Problem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonlinear Instability in a Semiclassical Problem will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-449081