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Bibliographic Details
Main Author: Pirani, Mattia
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2402.18418
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Table of Contents:
  • Flasque resolutions play an important role in understanding birational properties of algebraic tori. For instance, Colliot-Thélène and Sansuc have used them to compute $R$-equivalence classes of algebraic tori. We extend this notion to a larger class of algebraic varieties, including homogeneous spaces. This leads to a lower bound on the number of $R$-equivalence classes of homogeneous spaces, which is a slightly stronger version of a theorem of Colliot-Thélène and Kunyavskii.