Tail and moment estimates for sums of independent random vectors with logarithmically concave tails

Rafał Latała

Studia Mathematica (1996)

  • Volume: 118, Issue: 3, page 301-304
  • ISSN: 0039-3223

Abstract

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Let X i be a sequence of independent symmetric real random variables with logarithmically concave tails. We consider a variable X = v i X i , where v i are vectors of some Banach space. We derive approximate formulas for the tail and moments of ∥X∥. The estimates are exact up to some universal constant and they extend results of S. J. Dilworth and S. J. Montgomery-Smith [1] for the Rademacher sequence and E. D. Gluskin and S. Kwapień [2] for real coefficients.

How to cite

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Latała, Rafał. "Tail and moment estimates for sums of independent random vectors with logarithmically concave tails." Studia Mathematica 118.3 (1996): 301-304. <http://eudml.org/doc/216280>.

@article{Latała1996,
abstract = {Let $X_i$ be a sequence of independent symmetric real random variables with logarithmically concave tails. We consider a variable $X = ∑v_\{i\}X_\{i\}$, where $v_i$ are vectors of some Banach space. We derive approximate formulas for the tail and moments of ∥X∥. The estimates are exact up to some universal constant and they extend results of S. J. Dilworth and S. J. Montgomery-Smith [1] for the Rademacher sequence and E. D. Gluskin and S. Kwapień [2] for real coefficients.},
author = {Latała, Rafał},
journal = {Studia Mathematica},
keywords = {tail and moment estimates; logarithmically concave tails; Rademacher sequence},
language = {eng},
number = {3},
pages = {301-304},
title = {Tail and moment estimates for sums of independent random vectors with logarithmically concave tails},
url = {http://eudml.org/doc/216280},
volume = {118},
year = {1996},
}

TY - JOUR
AU - Latała, Rafał
TI - Tail and moment estimates for sums of independent random vectors with logarithmically concave tails
JO - Studia Mathematica
PY - 1996
VL - 118
IS - 3
SP - 301
EP - 304
AB - Let $X_i$ be a sequence of independent symmetric real random variables with logarithmically concave tails. We consider a variable $X = ∑v_{i}X_{i}$, where $v_i$ are vectors of some Banach space. We derive approximate formulas for the tail and moments of ∥X∥. The estimates are exact up to some universal constant and they extend results of S. J. Dilworth and S. J. Montgomery-Smith [1] for the Rademacher sequence and E. D. Gluskin and S. Kwapień [2] for real coefficients.
LA - eng
KW - tail and moment estimates; logarithmically concave tails; Rademacher sequence
UR - http://eudml.org/doc/216280
ER -

References

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  1. [1] S. J. Dilworth and S. J. Montgomery-Smith, The distribution of vector-valued Rademacher series, Ann. Probab. 21 (1993), 2046-2052. Zbl0798.46006
  2. [2] E. D. Gluskin and S. Kwapień, Tail and moment estimates for sums of independent random variables with logarithmically concave tails, Studia Math. 114 (1995), 303-309. Zbl0834.60050
  3. [3] P. Hitczenko and S. Kwapień, On the Rademacher series, in: Probability in Banach Spaces 9, Birkhäuser, Boston, 31-36. Zbl0822.60013
  4. [4] B. Maurey, Some deviation inequalities, Geom. Funct. Anal. 1 (1991), 188-197. Zbl0756.60018
  5. [5] M. Talagrand, A new isoperimetric inequality and the concentration of measure phenomenon, in: Israel Seminar (GAFA), Lecture Notes in Math. 1469, Springer, 1991, 94-124. Zbl0818.46047

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