2001
DOI: 10.1002/mma.231
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Unique continuation for systems with Lamé principal part

Abstract: SUMMARYWe generalize a result concerning unique continuation for the system of linearized isotropic elasticity by admitting ÿrst-order perturbations. The proof is based on elementary weighted L 2 -inequalities. Furthermore, we extend our result to a generalization of the Lamà e system in the context of alternating di erential forms.

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Cited by 25 publications
(23 citation statements)
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“…They proved the Carleman estimate by pseudodifferential calculus. Then Ang et al gave a result for λ ∈ C 2 (R n ), μ ∈ C 3 (R n ) [2]; Weck proved a result for λ, μ ∈ C 2 (R n ) [12,13]. On the other hand, the result on the strong unique continuation (SUCP) for the Lamé system was first obtained by Alessandrini and Morassi for n ≥ 2, λ, μ ∈ C 1,1 (R n ) [1].…”
Section: Introductionmentioning
confidence: 98%
“…They proved the Carleman estimate by pseudodifferential calculus. Then Ang et al gave a result for λ ∈ C 2 (R n ), μ ∈ C 3 (R n ) [2]; Weck proved a result for λ, μ ∈ C 2 (R n ) [12,13]. On the other hand, the result on the strong unique continuation (SUCP) for the Lamé system was first obtained by Alessandrini and Morassi for n ≥ 2, λ, μ ∈ C 1,1 (R n ) [1].…”
Section: Introductionmentioning
confidence: 98%
“…Besides the radiation conditions, one of the key ingredients in [2] and [10] is the unique continuation property for the isotropic elasticity system. The unique continuation property for this system has been proved by several authors; see for example [1], [3], [17], and [18]. In contrast to the isotropic setup, the unique continuation property for the general anisotropic elasticity system still poses a challenging open problem.…”
Section: Introductionmentioning
confidence: 99%
“…Instead, we only mention some related results on the elasticity system. When the medium is isotropic, the UCP has been established in [1], [4] and [21]. Moreover, a strong unique continuation property for the isotropic system was recently proven in [2] and in [15].…”
Section: Introductionmentioning
confidence: 99%
“…Our proof of the UCP for (1.2) via (2.11) relies on some delicate Carleman estimates. To deal with the lower triangular matrix function N , we will borrow some ideas from [21] (or [18]). The proof of the UCP is given in Section 2.…”
Section: Introductionmentioning
confidence: 99%
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