Olivier Glass (2010)
ESAIM: Control, Optimisation and Calculus of Variations
Similarity:
We prove the exact boundary controllability of the 3-D Euler equation of incompressible inviscid fluids on a regular connected bounded open set when the control operates on an open part of the boundary that meets any of the connected components of the boundary.
Bertrand Dekoninck, Serge Nicaise (2010)
ESAIM: Control, Optimisation and Calculus of Variations
Similarity:
We consider the exact controllability problem by boundary action of hyperbolic systems of networks of Euler-Bernoulli beams. Using the multiplier method and Ingham's inequality, we give sufficient conditions insuring the exact controllability for all time. These conditions are related to the spectral behaviour of the associated operator and are sufficiently concrete in order to be able to check them on particular networks as illustrated on simple examples.