On the eigenvalues of a class of hypo-elliptic operators. IV

• 1 January 1980
• journal article
• Published by Cellule MathDoc/Centre Mersenne in Annales de l'institut Fourier
• Vol. 30  (2) , 109-169
• https://doi.org/10.5802/aif.788

Abstract

Keywords

• EIGENVALUES
• CLASS OF HYPO
• HYPO ELLIPTIC OPERATORS