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Title
[Prof. Young-Hoon Kiem, School of Mathematics] Asymptotic regularity in the topology of moduli spaces of stable curves of genus 0 (Published in Proc. Nat'l Academy of Sciences of USA)
Date
2026-07-13

The moduli space of curves is a cornerstone object in mathematics and theoretical physics, underpinning theories from Gromov–Witten invariants to string theory.  We identify a striking hidde n  regularity: The distribution of its Betti numbers converges to the Gaussian function. This result demonstrates that complicated geometric structures can exhibit the same statistical predictability found in nature. Furthermore, we identify other fundamental moduli spaces, such as the Hilbert scheme, that do not exhibit asymptotic normality. This proposes a probabilistic approach for classifying geometric spaces based on their asymptotic behavior. 

 

Journal

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Publication Date

5 May, 2026

Article

Asymptotic distribution of the Betti numbers of \bar M_{0,n}

Authors

Choi, Jinwon; Kiem, Young-Hoon

DOI

https://doi.org/10.48550/arXiv.2601.08369

Link

https://arxiv.org/abs/2601.08369