mathematics, an abelian group, also called a commutative group, is a group in which the result of applying the group operation to two group elements does...
36 KB (5,284 words) - 05:57, 6 November 2024
In mathematics, a free abelian group is an abelian group with a basis. Being an abelian group means that it is a set with an addition operation that is...
49 KB (6,774 words) - 10:35, 30 October 2024
In abstract algebra, an abelian group ( G , + ) {\displaystyle (G,+)} is called finitely generated if there exist finitely many elements x 1 , … , x s...
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has the abelian groups as objects and group homomorphisms as morphisms. This is the prototype of an abelian category: indeed, every small abelian category...
5 KB (687 words) - 19:48, 13 November 2023
mathematics, and specifically in group theory, a non-abelian group, sometimes called a non-commutative group, is a group (G, ∗) in which there exists at...
2 KB (216 words) - 16:58, 13 July 2024
an abelian group A is the cardinality of a maximal linearly independent subset. The rank of A determines the size of the largest free abelian group contained...
7 KB (1,132 words) - 22:35, 10 December 2022
algebraic number theory, an abelian variety is a projective algebraic variety that is also an algebraic group, i.e., has a group law that can be defined by...
22 KB (3,157 words) - 03:15, 18 November 2024
topological abelian group, or TAG, is a topological group that is also an abelian group. That is, a TAG is both a group and a topological space, the group operations...
2 KB (301 words) - 11:53, 15 September 2024
In mathematics, specifically in group theory, an elementary abelian group is an abelian group in which all elements other than the identity have the same...
8 KB (991 words) - 18:18, 19 November 2024
In mathematics, specifically in the field of group theory, a divisible group is an abelian group in which every element can, in some sense, be divided...
10 KB (1,422 words) - 16:52, 8 October 2024
theory, locally compact abelian groups are abelian groups which have a particularly convenient topology on them. For example, the group of integers (equipped...
6 KB (942 words) - 12:21, 8 November 2023
specifically in the field of group theory, a solvable group or soluble group is a group that can be constructed from abelian groups using extensions. Equivalently...
18 KB (3,033 words) - 08:35, 27 October 2024
The motivating prototypical example of an abelian category is the category of abelian groups, Ab. Abelian categories are very stable categories; for...
19 KB (2,643 words) - 03:45, 26 March 2024
notion is a free abelian group; both notions are particular instances of a free object from universal algebra. As such, free groups are defined by their...
18 KB (2,309 words) - 19:40, 25 May 2024
metabelian group is a group whose commutator subgroup is abelian. Equivalently, a group G is metabelian if and only if there is an abelian normal subgroup...
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is enriched over the monoidal category of abelian groups (equivalently, all hom-sets in C are abelian groups and composition of morphisms is bilinear);...
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Pontryagin duality (redirect from Locally compact abelian topological group)
compact abelian groups that allows generalizing Fourier transform to all such groups, which include the circle group (the multiplicative group of complex...
39 KB (5,807 words) - 20:34, 7 November 2024
abelian group is an abelian group in which every element has finite order. For example, the torsion subgroup of an abelian group is a torsion abelian...
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mathematics, the Grothendieck group, or group of differences, of a commutative monoid M is a certain abelian group. This abelian group is constructed from M in...
24 KB (4,178 words) - 21:35, 19 July 2024
groups). If G and H are abelian (i.e., commutative) groups, then the set Hom(G, H) of all group homomorphisms from G to H is itself an abelian group:...
10 KB (1,538 words) - 11:34, 16 November 2024
In mathematics, the Klein four-group is an abelian group with four elements, in which each element is self-inverse (composing it with itself produces...
10 KB (1,375 words) - 10:24, 31 October 2024
In abstract algebra, an abelian extension is a Galois extension whose Galois group is abelian. When the Galois group is also cyclic, the extension is also...
2 KB (340 words) - 11:36, 16 May 2023
cyclic group. An abelian group, also called a commutative group, is a group in which the result of applying the group operation to two group elements...
15 KB (1,831 words) - 21:48, 27 January 2024
In mathematics, an Abelian 2-group is a higher dimensional analogue of an Abelian group, in the sense of higher algebra, which were originally introduced...
10 KB (1,503 words) - 21:46, 1 September 2024
Endomorphism ring (redirect from Endomorphism ring of an abelian group)
In mathematics, the endomorphisms of an abelian group X form a ring. This ring is called the endomorphism ring of X, denoted by End(X); the set of all...
9 KB (1,208 words) - 00:28, 6 March 2024
\mathbb {Z} /(p-1)\mathbb {Z} } In fact, any finite abelian group can be found as the Galois group of some subfield of a cyclotomic field extension by...
18 KB (3,190 words) - 20:36, 19 July 2024
Commutator subgroup (redirect from Derived group)
such that the quotient group of the original group by this subgroup is abelian. In other words, G / N {\displaystyle G/N} is abelian if and only if N {\displaystyle...
11 KB (1,833 words) - 17:10, 24 April 2023
said to be commutative, and the group is called an abelian group. It is a common convention that for an abelian group either additive or multiplicative...
102 KB (13,147 words) - 17:34, 8 November 2024
Look up Abelian or abelian in Wiktionary, the free dictionary. Abelian may refer to: Abelian group, a group in which the binary operation is commutative...
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multiplicative group of positive real numbers R + {\displaystyle \mathbb {R} ^{+}} is an abelian group with 1 its identity element. The logarithm is a group isomorphism...
4 KB (485 words) - 20:01, 30 April 2024