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- W4287547625 abstract "We consider boundary conditions of self-adjoint banded Toeplitz matrices. We ask if boundary conditions exist for banded self-adjoint Toeplitz matrices which satisfy operator inequalities of Dirichlet-Neumann bracketing type. For a special class of banded Toeplitz matrices including integer powers of the discrete Laplacian we find such boundary conditions. Moreover, for this class we give a lower bound on the spectral gap above the lowest eigenvalue." @default.
- W4287547625 created "2022-07-25" @default.
- W4287547625 creator A5037407545 @default.
- W4287547625 date "2020-12-29" @default.
- W4287547625 modified "2023-09-29" @default.
- W4287547625 title "Dirichlet-Neumann bracketing for a class of banded Toeplitz matrices" @default.
- W4287547625 doi "https://doi.org/10.48550/arxiv.2012.14684" @default.
- W4287547625 hasPublicationYear "2020" @default.
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