Control and Cybernetics Exact Controllability for the Semilinear String Equation in Non Cylindrical Domains
Control and Cybernetics Exact Controllability for the Semilinear String Equation in Non Cylindrical Domains
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通讯作者:
F. D. Araruna;G. Antunes;L. Medeiros
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作者:
F. D. Araruna;G. Antunes;L. Medeiros
In this paper, we investigate the exact controllability for a mixed problem for the equation u ′′ − τ 0 m + k m γ (t) − γ 0 γ 0 u xx + f (u) = 0 in a non cylindrical domain. This model, without the resistance represented for f (u), is a linearization of Kirchhoff's equation for small vibrations of a stretched elastic string when the ends are variables , see Medeiros, Limaco, Menezes (2002). We employ a variant, due to Zuazua (1990b), of the Hilbert Uniqueness Method (HUM), idealized by Lions (1988a, b).