A theorem on majorizing measures

dc.creatorBednorz, Witold
dc.date2005-10-18
dc.date2006-11-20
dc.date.accessioned2026-07-07T06:47:36Z
dc.date.available2026-07-07T06:47:36Z
dc.descriptionLet $(T,d)$ be a metric space and $ϕ:\mathbb{R}_+\to \mathbb{R}$ an increasing, convex function with $ϕ(0)=0$. We prove that if $m$ is a probability measure $m$ on $T$ which is majorizing with respect to $d,ϕ$, that is, $\mathcal{S}:=\sup_{x\in T}\int^{D(T)}_0ϕ^{-1}(\frac{1}{m(B(x,ε))}) dε<\infty$, then \[\mathbf{E}\sup_{s,t\in T}|X(s)-X(t)|\leq 32\mathcal{S}\] for each separable stochastic process $X(t)$, $t\in T$, which satisfies $\mathbf{E}ϕ(\frac{|X(s)-X(t)|}{d(s,t)})\leq 1$ for all $s,t\in T$, $s\neq t$. This is a strengthening of one of the main results from Talagrand [Ann. Probab. 18 (1990) 1--49], and its proof is significantly simpler.
dc.descriptionPublished at http://dx.doi.org/10.1214/009117906000000241 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
dc.identifierhttps://arxiv.org/abs/math/0510373
dc.identifierhttp://arxiv.org/abs/math/0510373
dc.identifierAnnals of Probability 2006, Vol. 34, No. 5, 1771-1781
dc.identifierdoi:10.1214/009117906000000241
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103706
dc.subjectProbability
dc.subject60G17 (Primary) 28A99 (Secondary)
dc.titleA theorem on majorizing measures
dc.typetext

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