4.1 Article

PROPAGATION THROUGH TRAPPED SETS AND SEMICLASSICAL RESOLVENT ESTIMATES

Journal

ANNALES DE L INSTITUT FOURIER
Volume 62, Issue 6, Pages 2347-2377

Publisher

ANNALES INST FOURIER
DOI: 10.5802/aif.2751

Keywords

Resolvent estimates; trapping; propagation of singularities

Categories

Funding

  1. National Science Foundation [DMS-0801226]
  2. Stanford University
  3. Division Of Mathematical Sciences
  4. Direct For Mathematical & Physical Scien [1004395] Funding Source: National Science Foundation

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Motivated by the study of resolvent estimates in the presence of trapping, we prove a semiclassical propagation theorem in a neighborhood of a compact invariant subset of the bicharacteristic flow which is isolated in a suitable sense. Examples include a global trapped set and a single isolated periodic trajectory. This is applied to obtain microlocal resolvent estimates with no loss compared to the nontrapping setting.

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