Renormings and symmetry properties of 1-greedy bases
Renormings and symmetry properties of 1-greedy bases
复制标题
1-贪婪基的重整和对称性
DOI:
10.1016/j.jat.2011.02.013
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发表时间:
2011
影响因子:
0.9
通讯作者:
Dilworth S
中科院分区:
文献类型:
--
作者:
Dilworth S
We continue the study of 1-greedy bases initiated by Albiac and Wojtaszczyk (2006) [1]. We answer several open problems that they raised concerning symmetry properties of 1-greedy bases and the improving of the greedy constant by renorming. We show that 1-greedy bases need not be symmetric or subsymmetric. We also prove that one cannot in general make a greedy basis 1-greedy as demonstrated for the Haar basis of the dyadic Hardy space H1(R) and for the unit vector basis of Tsirelson space. On the other hand, we give a renorming of Lp(1<p<∞) that makes the Haar basis 1-unconditional and 1-democratic. Other results in this paper clarify the relationship between various basis constants that arise in the context of greedy bases.
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影响因子:
0.9
作者:
F. Albiac;P. Wojtaszczyk
通讯作者:
P. Wojtaszczyk
DOI:
--
发表时间:
1968
期刊:
影响因子:
--
作者:
D. Garling
通讯作者:
D. Garling
影响因子:
0.8
作者:
S. Dilworth;E. Odell;T. Schlumprecht;A. Zsák
通讯作者:
A. Zsák
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
D. Kutzarova
通讯作者:
D. Kutzarova
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
Евгений Давидович Лившиц;Evgenii Davidovich Livshits
通讯作者:
Evgenii Davidovich Livshits