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Pré-Publication, Document De Travail Année : 2002

What is Stochastic Independence?

Uwe Franz

Résumé

The notion of a tensor product with projections or with inclusions is defined. It is shown that the definition of stochastic independence relies on such a structure and that independence can be defined in an arbitrary category with a tensor product with inclusions or projections. In this context, the classifications of quantum stochastic independence by Muraki, Ben Ghorbal, and Schürmann become classifications of the tensor products with inclusions for the categories of algebraic probability spaces and non-unital algebraic probability spaces. The notion of a reduction of one independence to another is also introduced. As examples the reductions of Fermi independence and boolean, monotone, and anti-monotone independence to tensor independence are presented.

Dates et versions

hal-00470215 , version 1 (05-04-2010)

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Uwe Franz. What is Stochastic Independence?. 2002. ⟨hal-00470215⟩
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