F-Splittings of seminormal monoid algebras

التفاصيل البيبلوغرافية
العنوان: F-Splittings of seminormal monoid algebras
المؤلفون: Hering, Milena, Tucker, Kevin
سنة النشر: 2025
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Commutative Algebra, 13A35, 16S36, 13F45, 14B05
الوصف: We compute a number of invariants of singularities defined via the Frobenius morphism for seminormal affine toric varieties over fields of characteristic p > 0. Our main technical tool is a combinatorial description of the potential splittings of iterates of Frobenius for seminormal monoid algebras. This allows us to give an easy formula for the F-splitting ratio of such rings as well as to compute the ideals stable under the Cartier algebra, including the test ideal.
Comment: 20 pages, 1 Figure
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2501.12091
رقم الانضمام: edsarx.2501.12091
قاعدة البيانات: arXiv