Abstract
From the beginning symplectic geometry has been very intimately connected with first order differential equations. However, it is only during the past 25 years or so that the great importance of symplectic geometry for the study of linear differential equations of high order has become clear. In these survey lectures I shall try to give a sketch of these developments as they look to me in retrospect.
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Hörmander, L. (2018). Symplectic Geometry And Differential Equations. In: Unpublished Manuscripts . Springer, Cham. https://doi.org/10.1007/978-3-319-69850-2_20
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