Consequences of the random matrix solution tothe Peterson–Thom conjecture

We show various new structural properties of free group factors using the recent resolution (due independently to Belinschi and Capitaine, and Bordenave and Collins) of the Peterson-Thom conjecture.These results include the resolution to the coarseness conjecture due independently to the first author and Popa, a generalization of Ozawa and Popa's celebrated strong solidity result using vastly more general versions of the normalizer (and in an ultraproduct setting), a dichotomy result for intertwining of maximal amenable subalgebras of interpolated free group factors, as well as applications to ultraproduct embeddings of nonamenable subalgebras of interpolated free group factors.

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Publication Details

Journal
Analysis & PDE
Published
2025-06-13
DOI
https://doi.org/10.2140/apde.2025.18.1805
Citations
3
Primary Topic
Random Matrices and Applications
Type
article
Field-Weighted Citation Impact
7.89

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article

Consequences of the random matrix solution tothe Peterson–Thom conjecture

Srivatsav Kunnawalkam Elayavalli, David Jekel, Ben Hayes
3 citations
Analysis & PDE
Random Matrices and Applications
7.89
article

Consequences of the random matrix solution tothe Peterson–Thom conjecture

Srivatsav Kunnawalkam Elayavalli, David Jekel, Ben Hayes
article en
3 citations

Abstract

We show various new structural properties of free group factors using the recent resolution (due independently to Belinschi and Capitaine, and Bordenave and Collins) of the Peterson-Thom conjecture.These results include the resolution to the coarseness conjecture due independently to the first author and Popa, a generalization of Ozawa and Popa's celebrated strong solidity result using vastly more general versions of the normalizer (and in an ultraproduct setting), a dichotomy result for intertwining of maximal amenable subalgebras of interpolated free group factors, as well as applications to ultraproduct embeddings of nonamenable subalgebras of interpolated free group factors.

Analysis & PDEVol. 18(7)
University of Copenhagen (DK), University of California San Diego (US), University of Virginia (US)
National Science Foundation
Openalex Percentile: Top 3%
Random Matrices and Applications
7.89
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