Witt Vector

In mathematics, a Witt vector is an infinite sequence of elements of a commutative ring. Ernst Witt showed how to put a ring structure on the set of Witt vectors, in such a way that the ring of Witt vectors over the finite field of order p is the ring of p-adic integers.

Read more about Witt Vector:  Motivation, Construction of Witt Rings, Examples, Universal Witt Vectors, Ring Schemes, Commutative Unipotent Algebraic Groups, See Also