TY - BOOK AU - Davies,E.B. TI - Heat kernels and spectral theory SN - 9780521409971 AV - QA329.4 U1 - 515.7/242 19 PY - 2007/// PB - Cambridge University Press KW - Elliptic operators KW - Heat equation KW - Spectral theory (Mathematics) KW - Mathematics KW - Differential operators KW - Spectral theory ER -