Computing Nodal Deficiency with a Refined Dirichlet-to-Neumann Map
Computing Nodal Deficiency with a Refined Dirichlet-to-Neumann Map
复制标题
使用精炼狄利克雷到诺伊曼图计算节点缺陷
DOI:
10.1007/s12220-022-00984-2
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Sundqvist, M. P.
中科院分区:
文献类型:
--
作者:
Berkolaiko, G.;Cox, G.;Helffer, B.;Sundqvist, M. P.
Recent work of the authors and their collaborators has uncovered fundamental connections between the Dirichlet-to-Neumann map, the spectral flow of a certain family of self-adjoint operators, and the nodal deficiency of a Laplacian eigenfunction (or an analogous deficiency associated to a non-bipartite equipartition). Using a refined construction of the Dirichlet-to-Neumann map, we strengthen all of these results, in particular getting improved bounds on the nodal deficiency of degenerate eigenfunctions. Our framework is very general, allowing for non-bipartite partitions, non-simple eigenvalues, and non-smooth nodal sets. Consequently, the results can be used in the general study of spectral minimal partitions, not just nodal partitions of generic Laplacian eigenfunctions.
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DOI:
--
发表时间:
2020
期刊:
Analysis & PDE
影响因子:
--
作者:
R. Band;G. Cox;Sebastian K. Egger
通讯作者:
Sebastian K. Egger
DOI:
10.1512/iumj.2017.66.6129
发表时间:
2015
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
G. Cox;C. Jones;J. Marzuola
通讯作者:
J. Marzuola
DOI:
10.1007/s00526-022-02311-7
发表时间:
2022
影响因子:
2.1
作者:
Berkolaiko, G.;Canzani, Y.;Cox, G.;Marzuola, J. L.
通讯作者:
Marzuola, J. L.
影响因子:
1
作者:
Arendt, Wolfgang;Mazzeo, Rafe
通讯作者:
Mazzeo, Rafe
影响因子:
1.9
作者:
B. Helffer;M. Sundqvist
通讯作者:
M. Sundqvist