Partial Differential Operators and Mathematical Physics

This work contains the contributions to the conference on Partial Differential Equations held in Holzhau in July 1994. Topics covered include: hyperbolic operators with double characteristics or with degeneracies; quasi-elliptic operators; spectral theory for elliptic operators; eta-invariant; singular configurations and asymptotics; Bergman-kernal; attractors of non-autonomous evolution equations; pseudo-differential operators; approximations and stability problems for elliptic operators; and operator determinants.