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Motivated by a question of Krzysztof Oleszkiewicz we study a notion of weak tail domination of random vectors. We show that if the dominating random variable is sufficiently regular then weak tail domination implies strong tail domination. In particular, a positive answer to Oleszkiewicz's question would follow from the so-called Bernoulli conjecture. We also prove that any unconditional logarithmically concave distribution is strongly dominated by a product symmetric exponential measure.
Wydawca
Rocznik
Tom
Strony
75--80
Opis fizyczny
Bibliogr. 9 poz.
Twórcy
autor
- Institute of Mathematics, Warsaw University, Banacha 2, 02-097 Warszawa, Poland, rlatala@mimuw.edu.pl
Bibliografia
- [1] N. Asmar and S. Montgomery-Smith, On the distribution of Sidon series, Ark. Mat. 31 (1993), 13-26.
- [2] K. Ball, Cube slicing in Rn, Proc. Amer. Math. Soc. 97 (1986), 465-473.
- [3] S. G. Bobkov and F. L. Nazarov, On convex bodies and log-concave probability measures with unconditional basis, in: Lecture Notes in Math. 1807, Springer, Berlin, 2003, 53-69.
- [4] C. Borell, Convex set functions in d-space, Period. Math. Hungar. 6 (1975), 111-136.
- [5] S. Kwapień and W. Woyczyński, Random Series and Stochastic Integrals: Single and Multiple, Birkhäuser, Boston, 1992.
- [6] R. Latała, Sudakov minoration principle and supremum of some processes, Geom. Funct. Anal. 7 (1997), 936-953.
- [7] M. Talagrand, Regularity of Gaussian processes, Acta Math. 159 (1987), 99-149.
- [8] M. Talagrand, The supremum of some canonical processes, Amer. J. Math. 116 (1994), 284-325.
- [9] M. Talagrand, The Generic Chaining. Upper and Lower Bounds of Stochastic Processes, Springer, Berlin, 2005.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT5-0036-0008