- 01-104 Lahmar-benbernou A., Martinez A.
- On Helffer-Sj\"ostrand's Theory of Resonances
(47K, LATeX 2e)
Mar 19, 01
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Abstract. We construct a simplified version of the microlocal theory of resonances
given by B. Helffer and J. Sj\"ostrand in \cite{HeSj1}. This new version
is based on
elementary microlocal exponential estimates, and permits to recover
their main results without the
use of their special pseudodifferential calculus and Fourier-integral
operators.
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