中文

$\ell^2(\Zn)$ 上伪微分算子的椭圆性与 Fredholm 性

谱理论 2019-10-22 v2 泛函分析

摘要

证明了在 Zn×Tn\Z^n\times \mathbb{T}^n 上带符号的椭圆伪微分算子的极小算子与极大算子重合,并给出其定义域用 Sobolev 空间表示。证明了在 Zn\Z^n 上伪微分算子的椭圆性与 Fredholm 性等价。还计算了 Zn\Z^n 上椭圆伪微分算子的指标。

关键词

引用

@article{arxiv.1910.05582,
  title  = {Ellipticity and Fredholmness of pseudo-differential operators on $\ell^2(\Zn)$},
  author = {Aparajita Dasgupta and Vishvesh Kumar},
  journal= {arXiv preprint arXiv:1910.05582},
  year   = {2019}
}

备注

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