Quartic exercises (Q1774356)
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scientific article; zbMATH DE number 2166335
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Quartic exercises |
scientific article; zbMATH DE number 2166335 |
Statements
Quartic exercises (English)
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9 May 2005
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Summary: A correspondence between quartic étale algebras over a field and quadratic étale extensions of cubic étale algebras is set up and investigated. The basic constructions are laid out in general for sets with a profinite group action and for torsors, and translated in terms of étale algebras and Galois algebras. A parametrization of cyclic quartic algebras is given.
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