Results 1 to 10 of about 21 (21)
Some of the next articles are maybe not open access.

Front d’onde analytique et sommes de carres de champs de vecteurs

Duke Mathematical Journal, 1985
Johannes Sjöstrand
exaly  

Positive solutions of Yamabe-type equations on the Heisenberg group

Duke Mathematical Journal, 1998
Luca Brandolini
exaly  

On the hypoellipticity for infinitely degenerate semi-elliptic operators

Journal of the Mathematical Society of Japan, 1978
Yoshinori Morimoto
exaly  

Hölder regularity of subelliptic pseudodifferential operators

Duke Mathematical Journal, 1990
Pengfei Guan
exaly  

Some note on Gevrey hypoellipticity and solvability on torus

Journal of the Mathematical Society of Japan, 1991
Todor Gramchev, Masafumi Yoshino
exaly  

Propagation of regularity and global hypoellipticity

Michigan Mathematical Journal, 2002
A Alexandrou Himonas
exaly  

Gevrey-hypoelliptic operators which are not $C^\infty$-hypoelliptic

Kyoto Journal of Mathematics, 1988
Takashi Okaji
exaly  

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