Witt vectors and truncation posets
Commutative Algebra
2017-02-10 v2 Algebraic Geometry
Algebraic Topology
Category Theory
Number Theory
Abstract
One way to define Witt vectors starts with a truncation poset . We generalize Witt vectors to truncation posets, and show how three types of maps of truncation posets can be used to encode the following six structure maps on Witt vectors: addition, multiplication, restriction, Frobenius, Verschiebung and norm.
Cite
@article{arxiv.1409.4156,
title = {Witt vectors and truncation posets},
author = {Vigleik Angeltveit},
journal= {arXiv preprint arXiv:1409.4156},
year = {2017}
}
Comments
To appear in Theory and Applications of Categories