On Multiplier Processes Under Weak Moment Assumptions

On Multiplier Processes Under Weak Moment Assumptions
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弱矩假设下的乘子过程

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发表时间:
2016
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通讯作者:
S. Mendelson
S. Mendelson
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作者:
S. Mendelson

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我们证明了如果(V子集mathbb{R}^{n})满足一个与无限性密切相关的对称条件,并且如果X是一个各向同性随机向量,对于每一个t∈Sn−1和每一个(1 leq plesssim log n),对于(|ig | _{L_{p}} leq Lsqrt{p}),则由V索引的相应经验和乘子过程的上极值表现为X是l -亚高斯。
We show that if (V subset mathbb{R}^{n}) satisfies a certain symmetry condition that is closely related to unconditionality, and if X is an isotropic random vector for which (|ig | _{L_{p}} leq Lsqrt{p}) for every t ∈ Sn−1 and every (1 leq plesssim log n), then the suprema of the corresponding empirical and multiplier processes indexed by V behave as if X were L-subgaussian.