Quantization of pseudo-differential operators on the torus

Details Quantization of pseudo-differential operators on the torus Quantization of pseudo-differential operators on the torus

2008-05-19

arxiv.org/abs/0805.2892v1

Journal Fourier Anal. Appl., 16 (2010), 943-982

Mathematics

Functional Analysis

36 pages

Scientific paper

Pseudo-differential and Fourier series operators on the n-torus are analyzed by using global representations by Fourier series instead of local representations in coordinate charts. Toroidal symbols are investigated and the correspondence between toroidal and Euclidean symbols of pseudo-differential operators is established. Periodization of operators and hyperbolic partial differential equations is discussed. Fourier series operators, which are analogues of Fourier integral operators on the torus, are introduced, and formulae for their compositions with pseudo-differential operators are derived. It is shown that pseudo-differential and Fourier series operators are bounded on $L^2$ under certain conditions on their phases and amplitudes.

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