Sjöstrand, Johannes Adiabatic projections from the pseudodifferential point of view. (Projecteurs adiabatiques du point de vue pseudodifférentiel.) (French) Zbl 0783.35087 C. R. Acad. Sci., Paris, Sér. I 317, No. 2, 217-220 (1993). Summary: We show how the use of formal pseudodifferential operators permits to recover the construction and a fundamental property of a certain family of projections, which plays an important role in linear adiabatic theory. Cited in 8 Documents MSC: 35S05 Pseudodifferential operators as generalizations of partial differential operators 35P20 Asymptotic distributions of eigenvalues in context of PDEs 81Q20 Semiclassical techniques, including WKB and Maslov methods applied to problems in quantum theory Keywords:adiabatic projectors; formal pseudodifferential operators; linear adiabatic theory PDF BibTeX XML Cite \textit{J. Sjöstrand}, C. R. Acad. Sci., Paris, Sér. I 317, No. 2, 217--220 (1993; Zbl 0783.35087)