1994 - Hypoellipticity of second order partial differential operators
1984 - 退化放物型作用素の準楕円性
Hypoellipticity of degenerate parabolic operators
MISC (19件):
Remarks on the Rank of a Lie Algebra and Necessary Conditions for Hypoellipticity of a Degenerate Parabolic Operator. Proceedings of the School of Science, Tokai University. 2003. 38. 21-31
Remarks on the Rank of a Lie Algebra and Necessary Conditions for Hypoellipticity of a Degenerate Parabolic Operator. Proceedings of the School of Science, Tokai University. 2003. 38. 21-31