On the Eigenvalue of a Class of Hypoelliptic Operators.
Menikoff, A. ; Sjöstrand, J.
Mathematische Annalen, Tome 237 (1978), p. 55-86 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1978-01-01
EUDML-ID : urn:eudml:doc:163144 
@article{GDZPPN002315912,
     title = {On the Eigenvalue of a Class of Hypoelliptic Operators.},
     journal = {Mathematische Annalen},
     volume = {237},
     year = {1978},
     pages = {55-86},
     zbl = {0375.35014},
     url = {http://dml.mathdoc.fr/item/GDZPPN002315912}
}

Menikoff, A.; Sjöstrand, J. On the Eigenvalue of a Class of Hypoelliptic Operators.. Mathematische Annalen, Tome 237 (1978) pp. 55-86. http://gdmltest.u-ga.fr/item/GDZPPN002315912/