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Bibliographic Details
Main Authors: Bohun, Simon, Romanov, Anna
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2405.06158
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Table of Contents:
  • We compute the Jantzen filtration of a D-module on the flag variety of $\mathrm{SL}_2(\mathbb{C})$. At each step in the computation, we illustrate the $\mathfrak{sl}_2(\mathbb{C})$-module structure on global sections to give an algebraic picture of this geometric computation. We conclude by showing that the Jantzen filtration on the D-module agrees with the algebraic Jantzen filtration on its global sections, demonstrating a famous theorem of Beilinson--Bernstein.