Hypoelliptic Estimates and Spectral Theory for Fokker-Planck Operators and Witten Laplacians: 1862 (Lecture Notes in Mathematics)
by Francis Nier,Bernard Helffer
ISBN 13: 9783540242000
Format: Illustrated (228 pages) Publisher: Springer Published: 11 Feb 2005
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Semi-Classical Analysis for the Schrödinger Operator and Applications: 1336 (Lecture Notes in Mathematics)
by Bernard Helffer
ISBN 13: 9783540500766
Format: Paperback (120 pages) Publisher: Springer Published: 22 Feb 2009