Boundary conditions associated with the general left-definite theory for differential operators

Boundary conditions associated with the general left-definite theory for differential operators
复制标题

与微分算子的一般左定理论相关的边界条件

DOI:
10.1016/j.jat.2018.10.005
复制
发表时间:
2019
影响因子:
0.9
通讯作者:
Liaw, Constanze
Liaw, Constanze
中科院分区:
数学3区
文献类型:
--
作者:
Fleeman, Matthew;Frymark, Dale;Liaw, Constanze

文献摘要

参考文献

被引文献

相似文献

在21世纪初,Littlejohn和Wellman发展了所谓的n次左定理论。也就是说,他们完全确定了与经典正交多项式相关的自伴Sturm-Liouville算子的“左定域”和幂的谱性质。我们研究了这些左定域与显式经典Glazman-Krein-Naimark(GKN)边界条件的关系。当n较小时,我们通过引入一种显式方法来检查给定函数集是否产生GKN条件,从而显着简化了之前具有挑战性的分析。这减少到计算相对小的矩阵的秩。我们包括显式计算n= 2,...,5。此外,任意权力n的Sturm-Liouville运营商与一个完整的系统的正交本征函数,我们表明,这些左定域给出的GKN边界条件,涉及一些多项式本征函数。我们还研究和扩展猜想Littlejohn-Wicks关于平等的四个不同的配方,这些领域。
In the early 2000s, Littlejohn and Wellman developed so-called n th left-definite theory. Namely, they fully determined the ‘left-definite domains’ and spectral properties of powers of self-adjoint Sturm–Liouville operators associated with classical orthogonal polynomials. We study how these left-definite domains relate with explicit classical Glazman–Krein–Naimark (GKN) boundary conditions. When n is small, we significantly simplify previously challenging analysis by introducing an explicit method for checking whether a given set of functions yields GKN conditions. This reduces to computing the rank of a relatively small matrix. We include explicit computations for n= 2,…, 5. Further, for arbitrary powers n of Sturm–Liouville operators with a complete system of orthogonal eigenfunctions, we show that these left-definite domains are given by GKN boundary conditions involving some of the polynomial eigenfunctions. We also study and extend a conjecture by Littlejohn–Wicks regarding the equality of four different formulations for these domains.
Glazman-Krein-Naimark 理论、左定理论和勒让德多项式微分算子的平方
DOI: --
发表时间: 2015
期刊:
影响因子: --
作者:
L. Littlejohn;Quinn Wicks
通讯作者: Quinn Wicks
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者:
L. Littlejohn;R. Wellman
通讯作者: R. Wellman
DOI: --
发表时间: 2002
期刊:
影响因子: --
作者:
L. Littlejohn;R. Wellman
通讯作者: R. Wellman
勒让德及相关函数
DOI: --
发表时间: 2010
期刊: NIST Handbook of Mathematical Functions
影响因子: --
作者:
T. M. Dunster
通讯作者: T. M. Dunster
由相关勒让德函数定义的希尔伯特尺度和索博列夫空间
DOI: --
发表时间: 2009
影响因子: 2.4
作者:
V. Domínguez;N. Heuer;F. Sayas
通讯作者: F. Sayas