Hypoellipticity and higher order Levi conditions |
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Authors: | Marco Mughetti |
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Affiliation: | Department of Mathematics, University of Bologna, Piazza di Porta S. Donato 5, 40127 Bologna, Italy |
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Abstract: | We study the C∞-hypoellipticity for a class of double characteristic operators with symplectic characteristic manifold, in the case the classical condition of minimal loss of derivatives is violated. |
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Keywords: | 34L15 |
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