Inverse problems for Jacobi operators III: Mass-spring perturbations of semi-infinite systems

Inverse problems for Jacobi operators III: Mass-spring perturbations of semi-infinite systems
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雅可比算子的反问题 III:半无限系统的质量弹簧扰动

DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
Luis O. Silva
Luis O. Silva
中科院分区:
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文献类型:
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作者:
R. Rio;M. Kudryavtsev;Luis O. Silva

文献摘要

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考虑一个无限大的线性质量弹簧系统,以及通过改变系统的第一质量和弹簧而得到的一个变形。我们给出的结果,这些系统的光谱的相互作用和重建的系统,从它的光谱和一个修改后的系统。此外,我们提供了两个序列是质量-弹簧系统的谱和扰动的谱的充分必要条件。
Consider an infinite linear mass-spring system and a modification of it obtained by changing the first mass and spring of the system. We give results on the interplay of the spectra of such systems and on the reconstruction of the system from its spectrum and the one of the modified system. Furthermore, we provide necessary and sufficient conditions for two sequences to be the spectra of the mass-spring system and the perturbed one.