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arXiv · 1406.6664

Preservation of algebraicity in free probability

Greg W. Anderson
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Abstract

We show that any matrix-polynomial combination of free noncommutative random variables each having an algebraic law has again an algebraic law. Our result answers a question raised by a recent paper of Shlyakhtenko and Skoufranis. The result belongs to a family of results with origins outside free probability theory, including a result of Aomoto asserting algebraicity of the Green function of random walk of quite general type on a free group.

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Greg W. Anderson. 2014-08-14. Preservation of algebraicity in free probability. https://arxiv.org/abs/1406.6664

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