The Theory of Witt Vectors

Published 26 Sep 2014 in math.NT and math.AC | (1409.7445v1)

Abstract: This is an introduction to the theory of Witt vectors. It includes a construction of the Witt rings, the Frobenius and Verschiebung endomorphisms, the canonical map from W to W² (its lambda-algebra structure), the relation to strict p-rings, and an account of the Artin-Hasse exponential.

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Joseph Rabinoff

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