01158nam0-22003851i-450-99000812078040332120050528120211.03-540-24200-7000812078FED01000812078(Aleph)000812078FED0100081207820050528d2005----km-y0itay50------baengDEa---a---001yyHypoelliptic estimates and spectral theory for Fokker-Planck operators and witten laplanciansB.Helffer,F.NierBerlinSpringerc2005x,209 p.24 cmLecture notes in mathematics1862Equazioni ipoellitticheGeometria spettrale516.3721itaHelffer,Bernard52445Nier,Francis497842ITUNINARICAUNIMARCBK990008120780403321C-20-(186220994MA1MA130H1058J5081Q10Hypoelliptic estimates and spectral theory for Fokker-Planck operators and witten laplancians758706UNINA