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- W3124352016 abstract "This paper is devoted to providing quantitative bounds on the location of eigenvalues, both discrete and embedded, of non self-adjoint Lame operators of elasticity $-Delta^ast + V$ in terms of suitable norms of the potential $V$. In particular, this allows to get sufficient conditions on the size of the potential such that the point spectrum of the perturbed operator remains empty. In three dimensions we show full spectral stability under suitable form-subordinated perturbations: we prove that the spectrum is purely continuous and coincides with the non negative semi-axis as in the free case." @default.
- W3124352016 created "2021-02-01" @default.
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- W3124352016 date "2021-01-22" @default.
- W3124352016 modified "2023-09-27" @default.
- W3124352016 title "Eigenvalue bounds and spectral stability of Lam'e operators with complex potentials" @default.
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