Spectral properties of the complex airy operator on the half-line
Spectral properties of the complex airy operator on the half-line
复制标题
半线上复艾里算子的谱特性
DOI:
10.1007/s10688-017-0168-1
复制
发表时间:
2017
影响因子:
0.4
通讯作者:
A. Shkalikov
中科院分区:
文献类型:
--
作者:
A. Savchuk;A. Shkalikov
We prove a theorem on the completeness of the system of root functions of the Schrödinger operatorL= −d2/dx2+p(x) on the half-line R+with a potentialpfor whichLappears to be maximal sectorial. An application of this theorem to the complex Airy operatorLc= −d2/dx2+cx,c= const, implies the completeness of the system of eigenfunctions ofLcfor the case in which |argc| < 2π/3.We use subtler methods to prove a theorem stating that the system of eigenfunctions of this special operator remains complete under the condition that |argc| < 5π/6.