In commutative algebra and algebraic geometry, localization is a formal way to introduce the "denominators" to a given ring or module. That is, it introduces...
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Commutative algebra, first known as ideal theory, is the branch of algebra that studies commutative rings, their ideals, and modules over such rings....
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a commutative ring is a ring in which the multiplication operation is commutative. The study of commutative rings is called commutative algebra. Complementarily...
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Noncommutative ring (redirect from Non-commutative localization)
Equivalently, a noncommutative ring is a ring that is not a commutative ring. Noncommutative algebra is the part of ring theory devoted to study of properties...
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Ring (mathematics) (redirect from Ring (algebra))
In mathematics, rings are algebraic structures that generalize fields: multiplication need not be commutative and multiplicative inverses need not exist...
99 KB (13,683 words) - 00:24, 11 December 2024
Ian G. Macdonald. It deals with elementary concepts of commutative algebra including localization, primary decomposition, integral dependence, Noetherian...
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duals of non-commutative algebraic objects such as rings as well as geometric objects derived from them (e.g. by gluing along localizations or taking noncommutative...
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Commutative algebra is the branch of abstract algebra that studies commutative rings, their ideals, and modules over such rings. Both algebraic geometry...
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Multiplicatively closed set (category Commutative algebra)
Multiplicative sets are important especially in commutative algebra, where they are used to build localizations of commutative rings. A subset S of a ring R is called...
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theorem Roman 2008, p. 115, §4 Ernst Kunz, "Introduction to Commutative algebra and algebraic geometry", Birkhauser 1985, ISBN 0-8176-3065-1 Irving Kaplansky...
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Noncommutative geometry (redirect from Non-commutative geometry)
generalized sense. A noncommutative algebra is an associative algebra in which the multiplication is not commutative, that is, for which x y {\displaystyle...
21 KB (2,384 words) - 11:22, 16 December 2024
Integrally closed domain (category Commutative algebra)
In commutative algebra, an integrally closed domain A is an integral domain whose integral closure in its field of fractions is A itself. Spelled out...
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Local ring (redirect from Commutative local ring)
algebra that studies commutative local rings and their modules. In practice, a commutative local ring often arises as the result of the localization of...
15 KB (2,311 words) - 00:43, 21 October 2024
G-ring (category Commutative algebra)
In commutative algebra, a G-ring or Grothendieck ring is a Noetherian ring such that the map of any of its local rings to the completion is regular (defined...
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size or multiplicity of elements of the field. It generalizes to commutative algebra the notion of size inherent in consideration of the degree of a pole...
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Ring (mathematics) Commutative algebra, Commutative ring Ring theory, Noncommutative ring Algebra over a field Non-associative algebra Relatives to rings:...
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Glossary of ring theory (redirect from Finitely presented algebra)
the subject. For the items in commutative algebra (the theory of commutative rings), see Glossary of commutative algebra. For ring-theoretic concepts in...
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Overring (category Commutative algebra)
ideal Localization (commutative algebra) Nilpotent – Element in a ring whose some power is 0 Picard group – Mathematical group occurring in algebraic geometry...
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Regular local ring (redirect from Regular ring (in commutative algebra))
In commutative algebra, a regular local ring is a Noetherian local ring having the property that the minimal number of generators of its maximal ideal...
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Spectrum of a ring (redirect from Spectrum of a commutative ring)
In commutative algebra, the prime spectrum (or simply the spectrum) of a commutative ring R {\displaystyle R} is the set of all prime ideals of R {\displaystyle...
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the entry-wise addition and multiplication is a two-dimensional commutative algebra over Q {\displaystyle \mathbb {Q} } . However, it is not a field...
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Quotient ring (redirect from Quotient associative algebra)
facts prove useful in commutative algebra and algebraic geometry: for R ≠ { 0 } {\displaystyle R\neq \lbrace 0\rbrace } commutative, R / I {\displaystyle...
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Flat module (redirect from Faithfully flat algebra)
last examples are implicitly behind the wide use of localization in commutative algebra and algebraic geometry. For a given ring homomorphism f : A → B...
30 KB (4,589 words) - 03:05, 9 August 2024
Auslander–Buchsbaum formula (category Commutative algebra)
In commutative algebra, the Auslander–Buchsbaum formula, introduced by Auslander and Buchsbaum (1957, theorem 3.7), states that if R is a commutative Noetherian...
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Category of rings (redirect from Category of commutative algebras)
all commutative rings. This category is one of the central objects of study in the subject of commutative algebra. Any ring can be made commutative by...
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Reduced ring (redirect from Reduced algebra)
A commutative algebra over a commutative ring is called a reduced algebra if its underlying ring is reduced. The nilpotent elements of a commutative ring...
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Unit (ring theory) (redirect from Unit (algebra))
relations specialized to the multiplicative semigroup of a commutative ring R. S-units Localization of a ring and a module In the case of rings, the use of...
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Graded ring (redirect from Graded commutative ring)
domain R. Then the localization of R with respect to S is a Z {\displaystyle \mathbb {Z} } -graded ring. If I is an ideal in a commutative ring R, then ⨁...
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glossary of commutative algebra. See also list of algebraic geometry topics, glossary of classical algebraic geometry, glossary of algebraic geometry, glossary...
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Completion of a ring (redirect from Completion (algebra))
Completion is similar to localization, and together they are among the most basic tools in analysing commutative rings. Complete commutative rings have a simpler...
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