Spectral Theory and Differential Equations

Spectral theory of ordinary differential operators. - Quasi-linear equations of evolution, with applications to partial differential equations. - Spectral theory of partial differential operators. - Different applications of convex and nonconvex optimization, especially to differential equations. - Results and problems in the spectral theory of periodic differential equations. - Sobolev embeddings. - Integral inequalities and spectral theory. - On the deficiency indices of powers of formally symmetric differential expressions. - On the spectral theory of schrödinger and dirac operators with strongly singular potentials. - Scattering theory for differential operators, III; exterior problems. - Swirling flow. - A survey of spectral theory for pairs of ordinary differential operators. - Deficiency indices and properties of spectrum of some classes of differential operators. - Eigenvalue problems for nonlinear second order differential equations. - Left-definite multiparameter eigenvalue problems.