- 97-291 Laptev, A., Sigal, I.M.
- Global Fourier Integral Operators and Semiclassical Asymptotics
May 22, 97
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Abstract. In this paper we introduce a class of semicalssical Fourier
integral operators with
global complex phases approximating the fundamental solutions
(propagators) for time-dependent Schroedinger equations.
Our construction is elementary, it is inspired by the joint
work of the first author with Yu. Safarov and D. Vasiliev.
We consider several simple but basic examples.