arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1807.01282math.SPmath-phmath.MP
收藏

非自伴离散Schr dinger算子的谱性质

On the spectral properties of non-selfadjoint discrete Schrödinger operators

Olivier Bourget, Diomba Sambou, Amal Taarabt

摘要:

设$H_0$是作用在可分无限维希尔伯特空间上的纯绝对连续自伴算子,$V$是紧的非自伴扰动.我们涉及的正则性$V$的扰动算子$H_0+V$的各种谱特性。离散谱的结构和嵌入的本征值与限制吸收原理的存在一起在一个统一的框架中进行了分析。我们的结果是基于一个合适的组合复杂的缩放技术,共振理论和积极的消除方法。分散在整个文献中的各种结果恢复和扩展。为了说明的目的,一维离散拉普拉斯算子的情况下,强调。

英文摘要:

Let $H_0$ be a purely absolutely continuous selfadjoint operator acting on some separable infinite-dimensional Hilbert space and $V$ be a compact non-selfadjoint perturbation. We relate the regularity properties of $V$ to various spectral properties of the perturbed operator $H_0+V$. The structure of the discrete spectrum and the embedded eigenvalues are analysed jointly with the existence of limiting absorption principles in a unified framework. Our results are based on a suitable combination of complex scaling techniques, resonance theory and positive commutators methods. Various results scattered throughout the literature are recovered and extended. For illustrative purposes, the case of the one-dimensional discrete Laplacian is emphasized.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑