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eess.SY2014
Approximate controllability and lack of controllability to zero of the heat equation with memory
L. Pandolfi, A. Halanay
In this paper we consider the heat equation with memory in a bounded region , , in the case that the propagation speed of the signal is infinite (i.e…
eess.SY2013
Sharp control time for viscoelastic bodys
Luciano Pandolfi
It is now well understood that equations of viscoelasticity can be seen as perturbation of wave type equations. This observation can be exploited in several different ways and it t…
eess.SY2013
Lack of controllability of thermal systems with memory
Andrei Halanay, Luciano Pandolfi
Heat equations with memory of Gurtin-Pipkin type have controllability properties which strongly resemble those of the wave equation. Instead, recent counterexamples show that when…