Witt vectors and truncation posets

Vigleik Angeltveit

Witt vectors and truncation posets

Vigleik Angeltveit^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

One way to define Witt vectors starts with a truncation set S ⊂ N. 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.

Original language	English
Article number	8
Pages (from-to)	258-285
Number of pages	28
Journal	Theory and Applications of Categories
Volume	32
Publication status	Published - 10 Feb 2017

Cite this

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title = "Witt vectors and truncation posets",

abstract = "One way to define Witt vectors starts with a truncation set S ⊂ N. 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.",

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N2 - One way to define Witt vectors starts with a truncation set S ⊂ N. 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.

AB - One way to define Witt vectors starts with a truncation set S ⊂ N. 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.

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KW - Truncation posets

KW - Witt vectors

UR - https://www.scopus.com/pages/publications/85013237618

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VL - 32

SP - 258

EP - 285

JO - Theory and Applications of Categories

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Witt vectors and truncation posets

Abstract

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