Uniform bounds of discrete Birman–Schwinger operators

Uniform bounds of discrete Birman–Schwinger operators
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离散 Birman–Schwinger 算子的统一界限

DOI:
10.1090/tran/7882
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发表时间:
2018
影响因子:
1.3
通讯作者:
Kouichi Taira
Kouichi Taira
中科院分区:
数学1区
文献类型:
--
作者:
Yukihide Tadano;Kouichi Taira

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本文研究了离散情形下Birman-Schwinger算子的一致界。对于均匀衰减势,我们得到了与连续情形相同的界。然而,对于非均匀衰减势,我们的结果比连续情形下的结果弱。作为应用,我们得到了离散Laplacian系统与弱耦合系统之间的酉等价性。
In this note, uniform bounds of the Birman-Schwinger operators in the discrete setting are studied. For uniformly decaying potentials, we obtain the same bound as in the continuous setting. However, for non-uniformly decaying potential, our results are weaker than in the continuous setting. As an application, we obtain unitary equivalence between the discrete Laplacian and the weakly coupled systems.
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