Eigenperiods and the moduli of points in the line

التفاصيل البيبلوغرافية
العنوان: Eigenperiods and the moduli of points in the line
المؤلفون: Deng, Haohua, Gallardo, Patricio
سنة النشر: 2023
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Algebraic Geometry, 14D22, 14H10, 14D05, 14D06, 14D07, G.0
الوصف: We study the period map of configurations of n points on the projective line constructed via a cyclic cover branching along these points. By considering the decomposition of its Hodge structure into eigenspaces, we establish the codimension of the locus where the eigenperiod map is still pure. Furthermore, we show that the period map extends to the divisors of a specific moduli space of weighted stable rational curves, and that this extension satisfies a local Torelli map along its fibers.
Comment: 25 pages
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2311.09352
رقم الأكسشن: edsarx.2311.09352
قاعدة البيانات: arXiv