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Indiana University Mathematics Journal · 1972 · 48 citations · 1 references
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Natural SciencesGeophysicsForm-findingCanonical TransformationsInvariant ManifoldsLagrangian MechanicsLie GroupsSymplectic GeometryVariational FormulationLagrangian SubmanifoldsSubmanifold TheorySymplectic Forms
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Fourier integral operators. I
Lars Hörmander · Acta Mathematica · 1971 · 2.4K citations · Full text
Natural Sciences, Mathematics, Applied Mathematics +9