Краевые задачи математической физики

The book is a somewhat expanded presentation of lectures given by the author to fourth-year students of the Faculty of Mathematics, Mechanics and Physics of Leningrad State University. It examines the main boundary value problems for second-order linear equations of elliptic, parabolic, hyperbolic and Schrödinger types, as well as for some classes of systems of such equations. The book is intended for senior students of universities and technical universities and for mathematicians of various specialties who want to get acquainted with one of the main branches of the theory of partial differential equations - the solution and study of boundary value problems (stationary and non-stationary).