Reference : Solvability of invariant systems of differential equations on the hyperbolic plane
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Solvability of invariant systems of differential equations on the hyperbolic plane
Palmirotta, Guendalina mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Mathematics (DMATH) >]
Oberseminar "Geometrische Analysis und Zahlentheorie"
Christian Arends and Jan Frahm
[en] In the Euclidean case, it is well-known, by Malgrange and Ehrenpreis, that linear differential operators with constant coefficients are solvable. However, what happens, if we genuinely extend this situation and consider systems of linear invariant differential operators, is still solvable? In case of Rn (for some positive integer n), the question has been proved mainly by HoĢˆrmander. We will show that this remains still true for Riemannian symmetric spaces of non-compact type X = G/K. More precisely, we will present a possible strategy to solve this problem by using the Fourier trans- form and its Paley-Wiener(-Schwartz) theorem for (distributional) sections of vector bundles over X. We will get complete solvability for the hyperbolic plane H2 = SL(2, R)/SO(2) and beyond.
This work was part of my doctoral dissertation supervised by Martin Olbrich.
Fonds National de la Recherche - FnR

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