Functional models for entire symmetric operators in rigged de Branges Pontryagin spaces
Functional models for entire symmetric operators in rigged de Branges Pontryagin spaces
复制标题
装配 de Branges Pontryagin 空间中整个对称算子的函数模型
DOI:
10.1016/j.jfa.2020.108776
复制
发表时间:
2021
影响因子:
1.7
通讯作者:
H. Dym
中科院分区:
文献类型:
--
作者:
V. Derkach;H. Dym
The theory of operator extensions in rigged Pontryagin spaces is used to develop two functional models for closed symmetric entire operators S with finite deficiency indices (p, p) acting in a separable Pontryagin space K. In the first functional model it is shown that every such operator S is unitarily equivalent to the multiplication operator in a de Branges-Pontryagin space B (E) of p× 1 vector valued entire functions. The second functional model is used to parametrize a class of compressed resolvents of extensions S˜ of S in terms of the range of a linear fractional transformation that is associated with the model. This approach is independent of the methods used by Krein and Langer to parameterize a related class of extensions.
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DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
V. Derkach
通讯作者:
V. Derkach
DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
Ju. Šmul′jan
通讯作者:
Ju. Šmul′jan
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
M. Kaltenbäck;H. Woracek
通讯作者:
H. Woracek
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
H. Dym;S. Sarkar
通讯作者:
S. Sarkar
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
A. Kochubei
通讯作者:
A. Kochubei