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Fourier integral operators, quantization, and the spectra of Riemannian manifolds. (English) Zbl 0327.58013
Geom. sympl. Phys. math., Colloq. int. Aix-en-Provence 1974, 289-298 (1975).

MSC:
58J99 Partial differential equations on manifolds; differential operators
35P05 General topics in linear spectral theory for PDEs
47Gxx Integral, integro-differential, and pseudodifferential operators
53C20 Global Riemannian geometry, including pinching
37-XX Dynamical systems and ergodic theory
58J20 Index theory and related fixed-point theorems on manifolds