The mathematical structure of the feedback control problem for linear distributed parameter systems with finite-dimensional controllers.- Inverse problems for hyperbolic systems with unknown boundary parameters.- Boundary control of some free boundary problems.- Finite dimensional compensators for nonlinear infinite dimensional systems.- Finite dimensional compensators for some hyperbolic systems with boundary control.- Direct solution of the bellmann equation for a stochastic control problem.- Degenerate differential equations and applications.- The numerical solution of differential equations arising in control theory for lumped and distributed parameter systems.- On time-optimal boundary control of vibrating beams.- An L2 theory for the quadratic optimal cost problem of hyperbolic equations with control in the dirichlet B.C..- On the identifiability of parameters in distributed systems.- The pole and zero structure of a class of linear systems.- Optimal control of rotation of a flexible arm.- Neutral functional differential equations and semigroups of operators.- Boundary observation and control of a vibrating plate: a preliminary report.- Boundary feedback stabilization for a quasi-linear wave equation.- Boundary feedback stabilization problems for hyperbolic equations.