Continuum limit for Laplace and Elliptic operators on lattices
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866909331553779712 |
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| author | Mikami, Keita Nakamura, Shu Tadano, Yukihide |
| author_facet | Mikami, Keita Nakamura, Shu Tadano, Yukihide |
| contents | Continuum limits of Laplace operators on general lattices are considered, and it is shown that these operators converge to elliptic operators on the Euclidean space in the sense of the generalized norm resolvent convergence. We then study operators on the hexagonal lattice, which does not apply the above general theory, but we can show its Laplace operator converges to the continuous Laplace operator in the continuum limit. We also study discrete operators on the square lattice corresponding to second order strictly elliptic operators with variable coefficients, and prove the generalized norm resolvent convergence in the continuum limit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_08894 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Continuum limit for Laplace and Elliptic operators on lattices Mikami, Keita Nakamura, Shu Tadano, Yukihide Mathematical Physics 47A10, 47B39, 47A58 Continuum limits of Laplace operators on general lattices are considered, and it is shown that these operators converge to elliptic operators on the Euclidean space in the sense of the generalized norm resolvent convergence. We then study operators on the hexagonal lattice, which does not apply the above general theory, but we can show its Laplace operator converges to the continuous Laplace operator in the continuum limit. We also study discrete operators on the square lattice corresponding to second order strictly elliptic operators with variable coefficients, and prove the generalized norm resolvent convergence in the continuum limit. |
| title | Continuum limit for Laplace and Elliptic operators on lattices |
| topic | Mathematical Physics 47A10, 47B39, 47A58 |
| url | https://arxiv.org/abs/2307.08894 |