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Factorization statistics
and bug-eyed configuration spaces
Dan Petersen and Philip Tosteson |
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Geometry & Topology 25 (2021) 3691–3723
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Abstract |
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A recent theorem of Hyde proves that the factorization statistics of a random polynomial over a finite field are governed by the action of the symmetric group on the configuration space of distinct ordered points in . Hyde asked whether this result could be explained geometrically. We give a geometric proof of Hyde’s theorem as an instance of the Grothendieck–Lefschetz trace formula applied to an interesting, highly nonseparated algebraic space. An advantage of our method is that it generalizes uniformly to any Weyl group. In the process we study certain non-Hausdorff models for complements of hyperplane arrangements, first introduced by Proudfoot. |
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Keywords
arithmetic topology, configuration spaces, hyperplane
arrangement, Salvetti complex
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Mathematical Subject Classification
Primary: 11T06, 14F20, 14N20, 55R80
Secondary: 14A20, 14G15
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References |
Publication
Received: 17 June 2020
Revised: 13 October 2020
Accepted: 22 November 2020
Published: 25 January 2022
Proposed: Mladen Bestvina
Seconded: David M Fisher, Dan Abramovich
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Authors |
| Dan Petersen | |
| Department of Mathematics Stockholm University Stockholm Sweden |
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| Philip Tosteson | |
| Department of Mathematics University of Chicago Chicago, IL United States |
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