2 papers
math.CO2025
Enriched Cycle Structures and Roots of Permutations
William Y. C. Chen, Elena L. Wang
This paper is concerned with a duality between -regular permutations and -cycle permutations, and a monotone property due to Bóna-McLennan-White on the probability …
math.NT2025
Noncongruence modular curves as Hurwitz spaces
William Y. Chen
In this survey article we give an overview of how noncongruence modular curves can be viewed as Hurwitz moduli spaces of covers of elliptic curves at most branched above the origin…