Rosenthal inequalities in noncommutative symmetric spaces
Rosenthal inequalities in noncommutative symmetric spaces
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DOI:
10.1016/j.jfa.2011.07.015
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发表时间:
2011-11
影响因子:
1.7
通讯作者:
S. Dirksen;B. Pagter;D. Potapov;F. Sukochev
中科院分区:
文献类型:
--
作者:
S. Dirksen;B. Pagter;D. Potapov;F. Sukochev
We give a direct proof of the ‘upper’ Khintchine inequality for a noncommutative symmetric (quasi-)Banach function space with nontrivial upper Boyd index. This settles an open question of C. Le Merdy and the fourth named author (Le Merdy and Sukochev, 2008 [24]). We apply this result to derive a version of Rosenthalʼs theorem for sums of independent random variables in a noncommutative symmetric space. As a result we obtain a new proof of Rosenthalʼs theorem for (Haagerup) Lp-spaces.