A uniform Chevalley theorem for direct summands of polynomial rings in mixed characteristic

Authors

Alessandro De Stefani, Università di GenovaFollow
Eloisa Grifo, University of Nebraska-LincolnFollow
Jack Jeffries, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

4-2022

Citation

arXiv:2104.00612v3 [math.AC] 11 Apr 2022

Comments

Copyright © 2021 by the authors

Abstract

We prove an explicit uniform Chevalley theorem for direct summands of graded polynomial rings in mixed characteristic. Our strategy relies on the introduction of a new type of differential powers that does not require the existence of a p-derivation on the direct summand.