Spectral stability of higher order semi-elliptic operators |
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Authors: | G Karapetyan N Saribekyan |
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Abstract: | The paper gives estimates for the variation of eigenvalues of Dirichlet problem for semielliptic operators with homogeneous boundary conditions upon variation of the boundary of the domain on which the problem is considered. Operators of arbitrary even order in each direction and open sets with Lipschitz smooth boundary are considered. |
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