Waves and spectra
Vibration frequencies, high-frequency wave patterns and reconstruction from frequency information.
3 problemsExistence, smoothness and long-time behavior of solutions to evolution equations.
Vibration frequencies, high-frequency wave patterns and reconstruction from frequency information.
3 problemsCan smooth three-dimensional collisionless plasma equations develop a singularity from regular initial data?
Does the area of a planar region impose a sharp lower bound on every Dirichlet vibration frequency, rather than only on high frequencies in the limit?