Abstract
By considering a two ended warped product manifold, we demonstrate a bifurcation that can occur when metric trapping interacts with a boundary. In this highly symmetric example, as the boundary passes through the trapped set, one goes from a nontrapping scenario where lossless local energy estimates are available for the wave equation to the case of stably trapped rays where all but a logarithmic amount of decay is lost.
| Original language | English |
|---|---|
| Pages (from-to) | 3801-3812 |
| Number of pages | 12 |
| Journal | Proceedings of the American Mathematical Society |
| Volume | 149 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2021 |