arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.4241math.SP
收藏

能量依赖型sturm-liouville方程反节点问题的稳定性

Stability of inverse nodal problem for energy-dependent sturm liouville equation

Emrah Yilmaz, Hikmet Kemaloglu

摘要:

扩散算子的逆节点问题是利用节点数据求出边界条件中的势函数和参数的问题。特别是,我们解决了重建和稳定性问题,使用节点集的特征函数。进一步证明了所有势函数q的空间同胚于由一个等价关系导出的所有渐近等价节点序列的划分集。为了证明这种稳定性,即Lipschitz稳定性,我们必须构造两个度量空间和它们之间的一个映射Φ_{dif}。我们发现,当相应的度量被q的导数放大时,Φ dif是一个同胚.基本上,这种方法类似于Tsay和Cheng分别给出的Sturm-Liouville和Hill算子,并且依赖于节点和节点长度的显式渐近展开。

英文摘要:

Inverse nodal problem on diffusion operator is the problem of finding the potential functions and parameters in the boundary conditions by using nodal data. In particular, we solve the reconstruction and stability problems using nodal set of eigenfunctions. Furthermore, we show that the space of all potential functions q is homeomorphic to the partition set of all asymptotically equivalent nodal sequences induced by an equivalence relation. To show this stability which is known Lipschitz stability, we have to construct two metric spaces and a map Φ_{dif} between these spaces. We find that Φ_{dif} is a homeomorphism when the corresponding metrics are magnified by the derivatives of q. Basically, this method is similar to Tsay and Cheng which is given for Sturm-Liouville and Hill operators, respectively and depends on the explicit asymptotic expansions of nodal points and nodal lengths.

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。

↑