• one can define a product of group subsets in a natural way. If S and T are subsets of a group G, then their product is the subset of G defined by S T...
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  • product Cartesian product of sets Direct product of groups Semidirect product Product of group subsets Wreath product Free product Zappa–Szép product...
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  • a product of groups usually refers to a direct product of groups, but may also mean: semidirect product Product of group subsets wreath product free...
    284 bytes (62 words) - 00:45, 29 December 2020
  • Thumbnail for Direct product of groups
    group-theoretic analogue of the Cartesian product of sets and is one of several important notions of direct product in mathematics. In the context of...
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  • special type of complement in a Frobenius group. A complemented group is one where every subgroup has a complement. Product of group subsets David S. Dummit...
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  • Thumbnail for Monoid
    In the same way the power set of a group G is a monoid under the product of group subsets. Let S be a set. The set of all functions S → S forms a monoid...
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  • Thumbnail for List of group theory topics
    abelian group Free group Free product Generating set of a group Group cohomology Group extension Presentation of a group Product of group subsets Schur...
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  • an order on the subsets, which is also called the lexicographical order. In this context, one generally prefer to sort first the subsets by cardinality...
    23 KB (3,352 words) - 07:24, 16 November 2023
  • abstractly, one talks about the product in category theory, which formalizes these notions. Examples are the product of sets, groups (described below), rings...
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  • Thumbnail for Gross domestic product
    Gross domestic product (GDP) is a monetary measure of the market value of all the final goods and services produced and rendered in a specific time period...
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  • notion of quasirandom groups arises when considering subsets of groups for which no two elements in the subset have a product in the subset; such subsets are...
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  • restricted product is a construction in the theory of topological groups. Let I {\displaystyle I} be an index set; S {\displaystyle S} a finite subset of I {\displaystyle...
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  • "invariant volume" to subsets of locally compact topological groups, consequently defining an integral for functions on those groups. This measure was introduced...
    31 KB (5,360 words) - 23:32, 29 December 2023
  • Frattini's argument (category Lemmas in group theory)
    normalizer of P {\displaystyle P} in G {\displaystyle G} , and N G ( P ) H {\displaystyle N_{G}(P)H} means the product of group subsets. The group P {\displaystyle...
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  • Thumbnail for Free group
    of the free group. An arbitrary group G is called free if it is isomorphic to FS for some subset S of G, that is, if there is a subset S of G such that...
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  • Thumbnail for Group action
    group as an abstract group, and to say that one has a group action of the abstract group that consists of performing the transformations of the group...
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  • In mathematics, an empty product, or nullary product or vacuous product, is the result of multiplying no factors. It is by convention equal to the multiplicative...
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  • Thumbnail for Subgroup
    Subgroup (redirect from Sub-group)
    group theory, a branch of mathematics, a subset of a group G is a subgroup of G if the members of that subset form a group with respect to the group operation...
    20 KB (1,637 words) - 16:43, 1 September 2024
  • Polish space (redirect from Polish group)
    are Polish: closed subsets of a Polish space, open subsets of a Polish space, products and disjoint unions of countable families of Polish spaces, locally...
    12 KB (1,494 words) - 20:05, 11 August 2024
  • algebra operations, composition given by the product of group subsets, the converse by the inverse subset ( A − 1 = { a − 1 : a ∈ A } {\displaystyle A^{-1}=\{a^{-1}\...
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  • Thumbnail for Generating set of a group
    + ) {\displaystyle (\mathbb {R} ,+)} . Different subsets of the same group can be generating subsets. For example, if p {\displaystyle p} and q {\displaystyle...
    11 KB (1,746 words) - 14:56, 16 May 2023
  • direct product of groups, the element of H may change if the order of the factors is changed.) 2.  Outer semidirect product: if N and H are two groups, and...
    74 KB (9,773 words) - 03:47, 6 September 2024
  • normalizer of S are subgroups of G. Many techniques in group theory are based on studying the centralizers and normalizers of suitable subsets S. Suitably...
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  • Thumbnail for Special unitary group
    classical group, U(n) is the group that preserves the standard inner product on C n {\displaystyle \mathbb {C} ^{n}} . It is itself a subgroup of the general...
    34 KB (5,711 words) - 10:42, 17 August 2024
  • Thumbnail for Connected space
    non-empty open subsets. Connectedness is one of the principal topological properties that are used to distinguish topological spaces. A subset of a topological...
    26 KB (3,815 words) - 01:49, 4 February 2024
  • Let G {\displaystyle G} be a group and K ≥ 1 {\displaystyle K\geq 1} ; for two subsets X , Y ⊂ G {\displaystyle X,Y\subset G} we denote by X ⋅ Y {\displaystyle...
    8 KB (1,250 words) - 23:22, 2 December 2023
  • product of representations is a tensor product of vector spaces underlying representations together with the factor-wise group action on the product....
    16 KB (2,941 words) - 00:32, 28 June 2024
  • branch of mathematics, the Lebesgue measure, named after French mathematician Henri Lebesgue, is the standard way of assigning a measure to subsets of higher...
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  • Thumbnail for Semidirect product
    mathematics, specifically in group theory, the concept of a semidirect product is a generalization of a direct product. It is usually denoted with the...
    30 KB (4,541 words) - 06:25, 10 August 2024
  • Thumbnail for Orthogonal group
    groups list of simple Lie groups Representations of classical Lie groups Brauer algebra Infinite subsets of a compact space have an accumulation point and...
    56 KB (7,844 words) - 08:45, 30 June 2024