Random matrices, free probability, planar algebras and subfactors

Details Random matrices, free probability, planar algebras and subfactors Random matrices, free probability, planar algebras and subfactors

2007-12-18

arxiv.org/abs/0712.2904v2

Mathematics

Operator Algebras

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Scientific paper

Using a family of graded algebra structures on a planar algebra and a family of traces coming from random matrix theory, we obtain a tower of non-commutative probability spaces, naturally associated to a given planar algebra. The associated von Neumann algebras are II$_{1}$ factors whose inclusions realize the given planar algebra as a system of higher relative commutants. We thus give an alternative proof to a result of Popa that every planar algebra can be realized by a subfactor.

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