Artin–Schreier theory
id:
artin-schreier-theory-257-18110559
title:
Artin–Schreier theory
text:
In mathematics, Artin–Schreier theory is a branch of Galois theory, specifically a positive characteristic analogue of Kummer theory, for Galois extensions of degree equal to the characteristic p. Artin and Schreier (1927) introduced Artin–Schreier theory for extensions of prime degree p, and Witt (1936) generalized it to extensions of prime power degree pn. If K is a field of characteristic p, a prime number, any polynomial of the form for α in K, is called an Artin–Schreier polynomial. When α
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encyclopedia
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original url:
https://en.wikipedia.org/wiki/Artin%E2%80%93Schreier_theory
date created:
date modified:
2021-11-03T16:54:37Z
main entity:
{"identifier":"Q713056","url":"https://www.wikidata.org/entity/Q713056"}
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13
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