01310nam a2200325 i 4500991000931429707536050325s2005 de b 001 0 eng d3540242007b1329491x-39ule_instDip.to Matematicaeng515.353AMS 35H10AMS 35H20AMS 35P05AMS 35P15Helffer, Bernard52445Hypoelliptic estimates and spectral theory for Fokker-Planck operators and Witten Laplacians /Bernard Helffer, Francis NierBerlin :Springer,c2005x, 209 p. ;24 cmLecture notes in mathematics,0075-8434 ;1862Includes bibliographical references an indexHypoelliptic operatorsSpectral theory (Mathematics)Nier, Francisauthorhttp://id.loc.gov/vocabulary/relators/aut497842.b1329491x08-07-1425-03-05991000931429707536LE013 35H HEL11 (2005)12013000289328le013pE39.95-l- 00000.i1405135714-04-05Hypoelliptic estimates and spectral theory for Fokker-Planck operators and Witten Laplacians1026563UNISALENTOle01325-03-05ma -engde 00