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
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发表时间:
2021
影响因子:
0.8
通讯作者:
Kuchment, P.
中科院分区:
文献类型:
--
作者:
Kuchment, P.
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.
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影响因子:
1.2
作者:
J. Castillo;V. Ferenczi
通讯作者:
V. Ferenczi
DOI:
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发表时间:
1981
期刊:
影响因子:
--
作者:
J. Bourgain
通讯作者:
J. Bourgain
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
DOI:
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发表时间:
1964
期刊:
影响因子:
--
作者:
B. Mityagin;A. Shvarts
通讯作者:
A. Shvarts
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
V. Smirnov;C. Khuen
通讯作者:
C. Khuen