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Finite group information


In abstract algebra, a finite group is a group whose underlying set is finite. Finite groups often arise when considering symmetry of mathematical or physical objects, when those objects admit just a finite number of structure-preserving transformations. Important examples of finite groups include cyclic groups and permutation groups.

The study of finite groups has been an integral part of group theory since it arose in the 19th century. One major area of study has been classification: the classification of finite simple groups (those with no nontrivial normal subgroup) was completed in 2004.

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Finite group

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In abstract algebra, a finite group is a group whose underlying set is finite. Finite groups often arise when considering symmetry of mathematical or...

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Abelian group

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their non-abelian counterparts, and finite abelian groups are very well understood and fully classified. An abelian group is a set A {\displaystyle A} , together...

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Coxeter group

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the finite Coxeter groups are precisely the finite Euclidean reflection groups; for example, the symmetry group of each regular polyhedron is a finite Coxeter...

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Presentation of a group

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combinatorial group theory. A presentation is said to be finitely generated if S is finite and finitely related if R is finite. If both are finite it is said...

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Sporadic group

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classification of finite simple groups, there are a number of groups which do not fit into any infinite family. These are called the sporadic simple groups, or the...

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List of finite simple groups

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classification of finite simple groups states that every finite simple group is cyclic, or alternating, or in one of 16 families of groups of Lie type, or...

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Profinite group

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profinite group is a topological group that is in a certain sense assembled from a system of finite groups. The idea of using a profinite group is to provide...

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Classification of finite simple groups

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mathematics, the classification of finite simple groups is a result of group theory stating that every finite simple group is either cyclic, or alternating...

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Group theory

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1960 and 2004, that culminated in a complete classification of finite simple groups. Group theory has three main historical sources: number theory, the...

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Cyclic group

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generator of the group. Every infinite cyclic group is isomorphic to the additive group of Z, the integers. Every finite cyclic group of order n is isomorphic...

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Generating set of a group

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a group is a subset of the group set such that every element of the group can be expressed as a combination (under the group operation) of finitely many...

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Representation theory of finite groups

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permutation representations. Other than a few marked exceptions, only finite groups will be considered in this article. We will also restrict ourselves...

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Residually finite group

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In the mathematical field of group theory, a group G is residually finite or finitely approximable if for every element g that is not the identity in G...

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Finitely generated group

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In algebra, a finitely generated group is a group G that has some finite generating set S so that every element of G can be written as the combination...

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Group of Lie type

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mathematics, specifically in group theory, the phrase group of Lie type usually refers to finite groups that are closely related to the group of rational points...

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Simple group

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smaller groups, namely a nontrivial normal subgroup and the corresponding quotient group. This process can be repeated, and for finite groups one eventually...

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Solvable group

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particular, finite p-groups are solvable, as all finite p-groups are nilpotent. In particular, the quaternion group is a solvable group given by the group extension...

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Group scheme

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several constructions. Finite direct products of group schemes have a canonical group scheme structure. Given an action of one group scheme on another by...

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Fourier transform on finite groups

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Fourier transform on finite groups is a generalization of the discrete Fourier transform from cyclic to arbitrary finite groups. The Fourier transform...

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Finiteness properties of groups

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mathematics, finiteness properties of a group are a collection of properties that allow the use of various algebraic and topological tools, for example group cohomology...

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Nilpotent group

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group theory, a nilpotent group G is a group that has an upper central series that terminates with G. Equivalently, it has a central series of finite...

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Group representation

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are: Finite groupsGroup representations are a very important tool in the study of finite groups. They also arise in the applications of finite group theory...

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Finitely generated abelian group

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abstract algebra, an abelian group ( G , + ) {\displaystyle (G,+)} is called finitely generated if there exist finitely many elements x 1 , … , x s {\displaystyle...

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Finite field

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finite field or Galois field (so-named in honor of Évariste Galois) is a field that contains a finite number of elements. As with any field, a finite...

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