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Acronyms that contain the term algebraic closure
What does algebraic closure mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: algebraic closure.
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What does algebraic closure mean?
- Algebraic closure
- In mathematics, particularly abstract algebra, an algebraic closure of a field K is an algebraic extension of K that is algebraically closed. It is one of many closures in mathematics. Using Zorn's lemma or the weaker ultrafilter lemma, it can be shown that every field has an algebraic closure, and that the algebraic closure of a field K is unique up to an isomorphism that fixes every member of K. Because of this essential uniqueness, we often speak of the algebraic closure of K, rather than an algebraic closure of K. The algebraic closure of a field K can be thought of as the largest algebraic extension of K. To see this, note that if L is any algebraic extension of K, then the algebraic closure of L is also an algebraic closure of K, and so L is contained within the algebraic closure of K. The algebraic closure of K is also the smallest algebraically closed field containing K, because if M is any algebraically closed field containing K, then the elements of M that are algebraic over K form an algebraic closure of K. The algebraic closure of a field K has the same cardinality as K if K is infinite, and is countably infinite if K is finite.
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"algebraic closure." Abbreviations.com. STANDS4 LLC, 2024. Web. 3 Jun 2024. <https://www.abbreviations.com/algebraic%20closure>.
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