TY - BOOK AU - Mielke,Alexander TI - Hamiltonian and Lagrangian flows on center manifolds: with applications to elliptic variational problems T2 - Lecture notes in mathematics SN - 354054710X PY - 1991/// CY - Berlin , New York PB - Springer-Verlag KW - Hamiltonian systems KW - Lagrangian equations KW - Differential equations, Elliptic KW - Calculus of variations N1 - Includes bibliographical references (p. [133]-138) and index ER -