Shubin type Fourier integral operators and evolution equations

Shubin type Fourier integral operators and evolution equations

We study the Cauchy problem for an evolution equation of Schr\"odinger type. The Hamiltonian is the Weyl quantization of a real homogeneous quadratic form with a pseudodifferential perturbation of negative order from Shubin's class. We prove that the propagator is a Fourier integral operat...

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Hauptverfasser: Cappiello, Marco, Schulz, René, Wahlberg, Patrik
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Mathematics - Analysis of PDEs
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Schulz, René
Wahlberg, Patrik
description We study the Cauchy problem for an evolution equation of Schr\"odinger type. The Hamiltonian is the Weyl quantization of a real homogeneous quadratic form with a pseudodifferential perturbation of negative order from Shubin's class. We prove that the propagator is a Fourier integral operator of Shubin type of order zero. Using results for such operators and corresponding Lagrangian distributions, we study the propagator and the solution, and derive phase space estimates for them.
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title Shubin type Fourier integral operators and evolution equations
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