Discrete Bethe–Sommerfeld Conjecture

Discrete Bethe–Sommerfeld Conjecture
复制标题

离散贝特-索末菲猜想

DOI:
--
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
S. Jitomirskaya
S. Jitomirskaya
中科院分区:
--
文献类型:
--
作者:
R. Han;S. Jitomirskaya

文献摘要

被引文献

相似文献

在本文中,我们证明了Bethe-Sommerfeld猜想的一个离散版本。也就是说,我们证明了$${\mathbb{Z}^d}$$ Zd晶格上具有足够小势的多维离散周期Schrödinger算子的谱最多包含两个区间。此外,如果至少有一个周期是奇数,则频谱是单个间隔,并且在所有周期都是偶数时可能存在间隙。
In this paper, we prove a discrete version of the Bethe–Sommerfeld conjecture. Namely, we show that the spectra of multi-dimensional discrete periodic Schrödinger operators on $${\mathbb{Z}^d}$$Zd lattice with sufficiently small potentials contain at most two intervals. Moreover, the spectrum is a single interval, provided at least one of the periods is odd, and can have a gap whenever all periods are even.