Three-Representation Problem in Banach Spaces

Three-Representation Problem in Banach Spaces
复制标题

Banach空间中的三表示问题

DOI:
10.1007/s11785-021-01079-6
复制
发表时间:
2021
影响因子:
0.8
通讯作者:
Kuchment, P.
Kuchment, P.
中科院分区:
数学3区
文献类型:
--
作者:
Kuchment, P.

文献摘要

参考文献

被引文献

相似文献

我们提供了先前公布的结果的证明,该结果解决了a . a . Kirillov提出的以下问题。给出Banach空间中有界线性算子群的一个表示,即闭不变子空间。然后以自然的方式生成中文和中文的表示。除了恢复演示文稿之外,还需要什么附加信息?在有限维(甚至无限维希尔伯特)情况下,解是众所周知的:需要提供一个群上同调类。在Banach的情况下也是如此,如果子空间是互补的。然而,每一个与Hilbert空间不同构的Banach空间都有非互补的子空间,这使得问题明显恶化,即使在一个平凡的群作用的情况下,问题也变得不平凡,它可以归结为所谓的三维问题。这解释了我们选择的标题。作者于1976年宣布了上述问题的解决方案,但由于非数学原因,尚未提供完整的证明。本文给出了类banof Banach空间中的函子的证明,以及一些相关的考虑。
We provide the proof of a previously announced result that resolves the following problem posed by A. A. Kirillov. LetTbe a presentation of a groupby bounded linear operators in a Banach spaceGandbe a closed invariant subspace. ThenTgenerates in the natural way presentationsinEandin. What additional information is required besidesto recover the presentationT? In finite-dimensional (and even in infinite dimensional Hilbert) case the solution is well known: one needs to supply a group cohomology class. The same holds in the Banach case, if the subspaceEis complemented inG. However, every Banach space that is not isomorphic to a Hilbert one has non-complemented subspaces, which aggravates the problem significantly and makes it non-trivial even in the case of a trivial group action, where it boils down to what is known as the three-space problem. This explains the title we have chosen. A solution of the problem stated above has been announced by the author in 1976, but the complete proof, for non-mathematical reasons, has not been made available. This article contains the proof, as well as some related considerations of the functorin the categoryBanof Banach spaces.
Banach 空间扭曲和的群作用
DOI: --
发表时间: 2020
影响因子: 1.2
作者:
J. Castillo;V. Ferenczi
通讯作者: V. Ferenczi
DOI: --
发表时间: 1981
期刊:
影响因子: --
作者:
J. Bourgain
通讯作者: J. Bourgain
Banach 空间的对偶性和扭曲和
DOI: --
发表时间: 2000
期刊:
影响因子: --
作者:
F. C. Sánchez;J. Castillo
通讯作者: J. Castillo
Banach 空间范畴中的函子
DOI: --
发表时间: 1964
期刊:
影响因子: --
作者:
B. Mityagin;A. Shvarts
通讯作者: A. Shvarts
线性拓扑空间范畴中函子Ext的研究
DOI: --
发表时间: 1991
期刊:
影响因子: --
作者:
V. Smirnov;C. Khuen
通讯作者: C. Khuen