Hypoellipticity of second order differential operators with sign-changing principal symbols
By: by Taishi Shimoda
Series: Tohoku mathematical publications -- no. 15; Tohoku mathematical publications -- no. 15.
Publisher: Tohoku University
Published: 2000
Place of publication: Sendai, Japan
Language: eng
Number of pages: 121
Subjects: Partial differential operators
Notes: "May 2000."

Originally presented as the author's thesis (doctoral)--Tohoku University, 2000.

Includes bibliographical references (p. 119-121).