TY  - BOOK
AU  - Helffer,Bernard
AU  - Helffer,Bernard
AU  - Nier,Francis
TI  - Hypoelliptic estimates and spectral theory for Fokker-Planck operators and Witten Laplacians
T2  - Lecture notes in mathematics,
SN  - 3540242007
PY  - 2005///
CY  - Berlin, New York
PB  - Springer
KW  - Hypoelliptic operators
KW  - Spectral theory (Mathematics)
ER  -