Friday, May 8

Controllability, Formability and Stabilization of Distributed Systems

4:30 PM-6:30 PM
Omni Ballroom B

The speakers will address some current directions and issues in control theory of distributed parameter systems. Motivated by applications of "smart" materials in control design, they will focus on the boundary formability of elastic structures, the effective stabilization of wave equations by actions on internal curves, and the controllability of semilinear problems containing superlinear terms. They will discuss several methods including nonharmonic analysis, characteristics, multipliers and integral inequalities.

Organizers: Vilmos Komornik
Université Louis Pasteur, France
John E. Lagnese
Georgetown University

4:30 Exact Internal Null-Controllability for the Semilinear Heat Equation with Superlinear Nonlinear Term
Alexander Y. Khapalov, Washington State University
5:00 Control of Semilinear Evolution Equations
Piermarco Cannarsa, Universita di Roma Tor Vergata, Italy; Vilmos Komornik, Universite Louis Pasteur, France; and Paola Loreti, Istituto per le Applicazioni del Calcolo ``Mauro Picone'', Consiglio Nazionale delle Ricerche, Italy
5:30 Formation of Rectangles and Triangles
David L. Russell, Virginia Polytechnic Institute and State University
6:00 Decay Estimates for Not Uniformly Stable Solutions of Wave Equations
Marius Tucsnak, Université Henri Poincare Nancy I, France

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MMD, 11/18/97