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Publication:3687079
zbMath0569.35015MaRDI QIDQ3687079
Bernard Helffer, J. F. Nourrigat
Publication date: 1983
Full work available at URL: https://eudml.org/doc/208497
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pseudodifferential operators as generalizations of partial differential operators (35S05) Nilpotent and solvable Lie groups (22E25) Hypoelliptic equations (35H10)
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