• 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
  • Thumbnail for Representation theory of the Poincaré group
    Lorentz group Representation theory of the Galilean group Representation theory of diffeomorphism groups Particle physics and representation theory Symmetry...
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  • Thumbnail for Irreducible representation
    specifically in the representation theory of groups and algebras, an irreducible representation ( ρ , V ) {\displaystyle (\rho ,V)} or irrep of an algebraic...
    21 KB (2,824 words) - 20:35, 17 February 2025
  • Thumbnail for Representation theory of the Galilean group
    formulation Representation theory of the Poincaré group Wigner's classification Pauli–Lubanski pseudovector Representation theory of the diffeomorphism group Rotation...
    10 KB (1,472 words) - 14:45, 21 June 2024
  • Thumbnail for Representation theory of the Lorentz group
    the more general theory of representation theory of semisimple groups, largely due to Élie Cartan and Hermann Weyl, but the Lorentz group has also received...
    150 KB (19,763 words) - 06:35, 10 May 2025
  • Thumbnail for Diffeomorphism
    diffeomorphism; those equivalent to a diffeomorphism leaving a simple closed curve invariant; and those equivalent to pseudo-Anosov diffeomorphisms....
    26 KB (4,166 words) - 19:23, 15 May 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 Orthogonal group
    even dimension Dr, where n = 2r. Since the group SO(n) is not simply connected, the representation theory of the orthogonal Lie algebras includes both...
    56 KB (7,881 words) - 20:44, 2 May 2025
  • 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 (7,269 words) - 14:03, 18 May 2025
  • any field of characteristic 0). The unitary representation theory of the Heisenberg group is fairly simple – later generalized by Mackey theory – and was...
    33 KB (5,924 words) - 03:11, 12 May 2025
  • Thumbnail for Adjoint representation
    adjoint representation (or adjoint action) of a Lie group G is a way of representing the elements of the group as linear transformations of the group's Lie...
    21 KB (3,517 words) - 18:29, 23 March 2025
  • Thumbnail for Frobenius group
    Springer 1967 I. M. Isaacs, Character theory of finite groups, AMS Chelsea 1976 D. S. Passman, Permutation groups, Benjamin 1968 Thompson, John G. (1960)...
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  • Thumbnail for Lie algebra representation
    field of representation theory, a Lie algebra representation or representation of a Lie algebra is a way of writing a Lie algebra as a set of matrices...
    28 KB (4,312 words) - 17:24, 28 November 2024
  • Thumbnail for Special unitary group
    on homotopy groups. The representation theory of SU(3) is well-understood. Descriptions of these representations, from the point of view of its complexified...
    35 KB (5,722 words) - 00:23, 17 May 2025
  • Thumbnail for Particle physics and representation theory
    representation theory, as first noted in the 1930s by Eugene Wigner. It links the properties of elementary particles to the structure of Lie groups and...
    19 KB (2,677 words) - 16:34, 17 May 2025
  • Thumbnail for Loop quantum gravity
    of solutions to Gauss's law and spatial diffeomorphism constraints that led Rovelli and Smolin to consider the loop representation in gauge theories and...
    115 KB (16,616 words) - 10:42, 27 March 2025
  • Thumbnail for Projective linear group
    construct M24. PSL groups arise as Hurwitz groups (automorphism groups of Hurwitz surfaces – algebraic curves of maximal possibly symmetry group). The Hurwitz...
    44 KB (5,613 words) - 10:17, 14 May 2025
  • Thumbnail for Finite group
    simple groups List of small groups Modular representation theory Monstrous moonshine P-group Profinite group Representation theory of finite groups Aschbacher...
    15 KB (1,831 words) - 16:54, 2 February 2025
  • Thumbnail for General linear group
    larger group, and topologically much simpler, namely contractible – see Kuiper's theorem. List of finite simple groups SL2(R) Representation theory of SL2(R)...
    24 KB (3,929 words) - 19:07, 8 May 2025
  • Thumbnail for Loop representation in gauge theories and quantum gravity
    gauge theories in terms of extended objects such as Wilson loops and holonomies. The loop representation is a quantum hamiltonian representation of gauge...
    30 KB (5,585 words) - 06:04, 2 January 2025
  • Thumbnail for Symmetric group
    important to diverse areas of mathematics such as Galois theory, invariant theory, the representation theory of Lie groups, and combinatorics. Cayley's...
    46 KB (6,212 words) - 15:23, 13 February 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
  • Thumbnail for Lie group
    derivation of this fact) is the symmetry algebra of two-dimensional conformal field theory. Diffeomorphism groups of compact manifolds of larger dimension...
    65 KB (9,490 words) - 15:29, 22 April 2025
  • Thumbnail for Gauge theory
    invariance and diffeomorphism invariance reflect a redundancy in the description of the system. An alternative theory of gravitation, gauge theory gravity,...
    48 KB (6,822 words) - 10:30, 18 May 2025
  • Thumbnail for Representation theory of semisimple Lie algebras
    the representation theory of semisimple Lie algebras is one of the crowning achievements of the theory of Lie groups and Lie algebras. The theory was...
    28 KB (4,247 words) - 04:38, 20 August 2024
  • Thumbnail for Mathieu group
    In group theory, a topic in abstract algebra, the Mathieu groups are the five sporadic simple groups M11, M12, M22, M23 and M24 introduced by Mathieu (1861...
    22 KB (2,168 words) - 05:07, 15 March 2025
  • Thumbnail for Group theory
    all be seen as groups endowed with additional operations and axioms. Groups recur throughout mathematics, and the methods of group theory have influenced...
    39 KB (5,086 words) - 18:26, 11 April 2025
  • Thumbnail for Group action
    called a representation of the group. In the case of a finite-dimensional vector space, it allows one to identify many groups with subgroups of the general...
    46 KB (5,742 words) - 03:09, 10 May 2025
  • operator Representation theory of the symmetric group Representation theory of diffeomorphism groups Permutation representation Affine representation Projective...
    2 KB (195 words) - 18:57, 7 December 2024
  • Thumbnail for Exponential map (Lie theory)
    In the theory of Lie groups, the exponential map is a map from the Lie algebra g {\displaystyle {\mathfrak {g}}} of a Lie group G {\displaystyle G} to...
    14 KB (2,325 words) - 13:21, 22 January 2025