• The representation theory of groups is a part of mathematics which examines how groups act on given structures. Here the focus is in particular on operations...
    105 KB (21,294 words) - 10:21, 1 April 2025
  • Thumbnail for Group representation
    mathematical field of representation theory, group representations describe abstract groups in terms of bijective linear transformations of a vector space...
    15 KB (2,245 words) - 02:55, 11 May 2025
  • information about the representation in a more condensed form. Georg Frobenius initially developed representation theory of finite groups entirely based on...
    24 KB (3,521 words) - 06:38, 16 December 2024
  • Thumbnail for Representation theory
    include groups, associative algebras and Lie algebras. The most prominent of these (and historically the first) is the representation theory of groups, in...
    56 KB (7,331 words) - 19:13, 5 June 2025
  • Modular representation theory is a branch of mathematics, and is the part of representation theory that studies linear representations of finite groups over...
    18 KB (2,613 words) - 08:46, 23 November 2024
  • Thumbnail for Finite group
    aspects of the theory of finite groups in great depth, especially the local theory of finite groups and the theory of solvable and nilpotent groups. As a...
    15 KB (1,831 words) - 16:54, 2 February 2025
  • In mathematics, the representation theory of the symmetric group is a particular case of the representation theory of finite groups, for which a concrete...
    20 KB (2,840 words) - 08:32, 1 July 2025
  • Thumbnail for Group theory
    complete classification of finite simple groups. Group theory has three main historical sources: number theory, the theory of algebraic equations, and...
    39 KB (5,086 words) - 11:47, 19 June 2025
  • of a group. There is a direct relationship between the Fourier transform on finite groups and the representation theory of finite groups. The set of complex-valued...
    13 KB (2,052 words) - 20:50, 6 July 2025
  • Thumbnail for Group (mathematics)
    worked on representation theory of finite groups and wrote the first book about group theory in the English language: Theory of Groups of Finite Order),...
    103 KB (13,241 words) - 14:14, 11 June 2025
  • Thumbnail for Classification of finite simple groups
    classification of finite simple groups (popularly called the enormous theorem) is a result of group theory stating that every finite simple group is either...
    44 KB (3,961 words) - 21:20, 25 June 2025
  • Thumbnail for Group of Lie type
    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 of a reductive...
    22 KB (2,985 words) - 04:28, 23 November 2024
  • product of linear maps. One can extend the notion of tensor products to any finite number of representations. If V is a linear representation of a group G,...
    16 KB (2,941 words) - 05:49, 19 May 2025
  • In the mathematical field of representation theory, a weight of an algebra A over a field F is an algebra homomorphism from A to F, or equivalently, a...
    22 KB (3,368 words) - 17:09, 14 April 2025
  • in terms of the more concrete ones, using homomorphisms, actions and modules. An early pioneer of the representation theory of finite groups was Ferdinand...
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  • Thumbnail for Representation theory of the Poincaré group
    mathematics, the representation theory of the Poincaré group is an example of the representation theory of a Lie group that is neither a compact group nor a semisimple...
    5 KB (586 words) - 08:41, 27 June 2025
  • Thumbnail for Walter Feit
    Walter Feit (category Group theorists)
    Austrian-born American mathematician who worked in finite group theory and representation theory. His contributions provided elementary infrastructure...
    7 KB (640 words) - 01:14, 7 March 2025
  • for the representation theory of the group of diffeomorphisms of a smooth manifold M is the initial observation that (for M connected) that group acts transitively...
    7 KB (850 words) - 04:23, 4 November 2024
  • Schur's lemma (category Representation theory)
    in representation theory of groups and algebras. In the group case it says that if M and N are two finite-dimensional irreducible representations of a...
    23 KB (3,820 words) - 03:30, 29 April 2025
  • object of representation theory. Salient parts of the theory include: Representation theory of finite groups; Representation theory of Lie groups and more...
    13 KB (1,599 words) - 16:25, 14 July 2025
  • modular representation theory of finite groups relating the degrees of the complex irreducible characters in a Brauer block and the structure of its defect...
    5 KB (716 words) - 20:55, 6 April 2025
  • Thumbnail for Maschke's theorem
    Maschke's theorem (category Representation theory of finite groups)
    Heinrich Maschke, is a theorem in group representation theory that concerns the decomposition of representations of a finite group into irreducible pieces. Maschke's...
    13 KB (2,236 words) - 20:08, 25 April 2025
  • Frobenius reciprocity (category Representation theory of finite groups)
    inventor of the representation theory of finite groups. The theorem was originally stated in terms of character theory. Let G be a finite group with a subgroup...
    9 KB (906 words) - 03:41, 4 June 2025
  • Thumbnail for Compact group
    operated on, the result is also within the group). Compact groups are a natural generalization of finite groups with the discrete topology and have properties...
    30 KB (4,472 words) - 20:43, 23 November 2024
  • Bhama Srinivasan (category Indian group theorists)
    work in the representation theory of finite groups. Her contributions were honored with the 1990 Noether Lecture. She served as president of the Association...
    8 KB (755 words) - 07:57, 16 May 2025
  • In group theory, the induced representation is a representation of a group, G, which is constructed using a known representation of a subgroup H. Given...
    13 KB (1,815 words) - 17:22, 29 April 2025
  • Thumbnail for Symmetric group
    automorphism groups, and their representation theory. For the remainder of this article, "symmetric group" will mean a symmetric group on a finite set. The...
    46 KB (6,212 words) - 00:59, 12 July 2025
  • Thumbnail for Representation of a Lie group
    For such groups, a typical goal of representation theory is to classify all finite-dimensional irreducible representations of the given group, up to isomorphism...
    34 KB (5,246 words) - 08:31, 14 January 2025
  • Thumbnail for List of group theory topics
    all be seen as groups endowed with additional operations and axioms. Groups recur throughout mathematics, and the methods of group theory have influenced...
    10 KB (800 words) - 23:24, 17 September 2024
  • Schur polynomial (category Representation theory of finite groups)
    polynomials. In representation theory they are the characters of polynomial irreducible representations of the general linear groups. The Schur polynomials...
    20 KB (3,773 words) - 12:22, 22 April 2025