TY - BOOK AU - Encyclopaedia of Mathematical Sciences AU - Egorov, Yu V. ; ed. AU - Shubin, M. A. ; jt. ed. TI - Partial differential equations VI: elliptic parabolic operators T2 - Encyclopaedia of Mathematical Sciences SN - 3540546782 U1 - 510.3 PY - 1994/// CY - Berlin PB - Springer-Verlag ER -