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On the distribution of random variables corresponding to Musielak-Orlicz norms

David Alonso-Gutiérrez, Sören Christensen, Markus Passenbrunner, Joscha Prochno (2013)

Studia Mathematica

Given a normalized Orlicz function M we provide an easy formula for a distribution such that, if X is a random variable distributed accordingly and X₁,...,Xₙ are independent copies of X, then 1 / C p | | x | | M | | ( x i X i ) i = 1 | | p C p | | x | | M , where C p is a positive constant depending only on p. In case p = 2 we need the function t ↦ tM’(t) - M(t) to be 2-concave and as an application immediately obtain an embedding of the corresponding Orlicz spaces into L₁[0,1]. We also provide a general result replacing the p -norm by an arbitrary N-norm. This...

On the existence of probability measures with given marginals

David Alan Edwards (1978)

Annales de l'institut Fourier

Let X be a compact ordered space and let μ , ν be two probabilities on X such that μ ( f ) ν ( f ) for every increasing continuous function f : X R . Then we show that there exists a probability θ on X × X such that(i) θ ( R ) = 1 , where R is the graph of the order in X ,(ii) the projections of θ onto X are μ and ν .This theorem is generalized to the completely regular ordered spaces of Nachbin and also to certain infinite products. We show how these theorems are related to certain results of Nachbin, Strassen and Hommel.

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