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On the regular part of the Bloch Green’s function for the Laplacian: analytical formula and critical points
Analysis and Mathematical Physics ( IF 1.7 ) Pub Date : 2021-04-09 , DOI: 10.1007/s13324-021-00528-x
Senping Luo , Chong Wang , Juncheng Wei

This paper is concerned with the regular part of the Bloch Green’s function in a Wigner–Seitz lattice cell. We first give a new fast converging series expression. Then we derive explicit expression using some Dedekind eta functions when the Bloch vector \(\mathbf {k}\) are some rational numbers. Finally we study its critical points.



中文翻译:

关于拉普拉斯算子的布洛赫格林函数的常规部分:解析公式和临界点

本文涉及Wigner-Seitz晶格单元中布洛赫格林函数的正则部分。我们首先给出一个新的快速收敛级数表达式。然后,当Bloch向量\(\ mathbf {k} \)是一些有理数时,我们使用一些Dedekind eta函数导出显式表达式。最后,我们研究其关键点。

更新日期:2021-04-11
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