论文信息 - Trapping obstacles with a sequence of poles of the scattering matrix converging to the real axis

Trapping obstacles with a sequence of poles of the scattering matrix converging to the real axis

Soit O un ensemble ouvert borne de R 3 a frontiere suffisamment lisse. On pose Ω=R 3 −Ō, Ω connexe. On considere □u=∂ 2 u/∂t 2 −Σ j=1 3 ∂ 2 u/∂x j 2 =0 dans (−∞,∞)×Ω; u(t,x)=0 sur (−∞,∞)×Γ• Soit S(z) la matrice diffusion. On cherche un O dont la matrice diffusion a une certaine suite de poles

M. Ikawa

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