![](/img/cover-not-exists.png)
On a class of hypoelliptic differential operators with double characteristics
TAIRA, KazuakiVolume:
45
Language:
english
Journal:
Journal of the Mathematical Society of Japan
DOI:
10.2969/jmsj/04530391
Date:
July, 1993
File:
PDF, 1.82 MB
english, 1993