partial differential equation methods in control and shape analysis

Giuseppe Da Prato, Jean-Paul Zolesio

• Shape control of a hydrodynamic wake; on some inverse geometrical problems; a viscosity solutions approach to some asymptotic problems in optimal control; homogenization and continuous dependence for Dirichlet problems in L'; a remark on regularization of the wave equation with boundary input; a Pontryagin's principle for boundary control problems of quasilinear elliptic equations; computation of shape gradients for mixed finite element formulation; on a geometrical Bang-Bang principle for some compliance problems; shape derivative for the Laplace-Beltrami equation; an energetic principle for a free boundary problem for Navier-Stokes equations; dynamic programming techniques in the approximation of optical stoping time problems in Hilbert spaces; strong solutions for Kolmogorov equation in Hilbert spaces; sufficient conditions for Dirichlet boundary control problems of parabolic type; shape Hessian for a nondifferentiable variational free boundary problem; Carleman estimates and exact boundary controllability for a system of Couped, nonconservative second-order hyperbolic equations; static and dynamic behaviour of a fluid-shell system; numerical method for shape identification problems; partial regularity of weak solutions to certain parabolic equations; local regularity properties of the minimum time function; some remarks on the detectability conditions for stochastic systems; suboptimal shape of a plate stretched by planar forces.

"The papers present the latest developments and major advances in the fields of active and passive control for systems governed by partial differential equations-in particular in shape analysis and optimal shape design. … The authors of the articles are well known for important results in this field of research."- Studia Universitatis Babes-Bolyai Series Mathematica, Vol. XLVIII, No. 1, 2003