• Thumbnail for Adjoint representation
    In mathematics, the adjoint representation (or adjoint action) of a Lie group G is a way of representing the elements of the group as linear transformations...
    21 KB (3,528 words) - 06:38, 9 July 2025
  • Thumbnail for Special unitary group
    Tr(T_{a}T_{b})={\frac {1}{2}}\delta _{ab}.} In the (n2 − 1)-dimensional adjoint representation, the generators are represented by (n2 − 1) × (n2 − 1) matrices...
    35 KB (5,722 words) - 00:23, 17 May 2025
  • Thumbnail for Lie algebra
    Lie algebra g {\displaystyle {\mathfrak {g}}} , the adjoint representation is the representation ad : g → g l ( g ) {\displaystyle \operatorname {ad}...
    62 KB (10,497 words) - 10:18, 26 June 2025
  • d ( V ) {\displaystyle \mathrm {End} (V)} ⁠. In fact it is the adjoint representation ad(u) of ⁠ E n d ( V ) {\displaystyle \mathrm {End} (V)} ⁠. Given...
    50 KB (8,686 words) - 07:36, 29 May 2025
  • Thumbnail for Semisimple Lie algebra
    lemma.) As the adjoint representation is injective, a semisimple Lie algebra is a linear Lie algebra under the adjoint representation. This may lead to...
    41 KB (5,743 words) - 05:34, 4 March 2025
  • representations. PU(n) has an adjoint action on SU(n), thus it has an ( n 2 − 1 ) {\displaystyle (n^{2}-1)} -dimensional representation. When n = 2 this corresponds...
    13 KB (2,310 words) - 12:41, 21 September 2023
  • Thumbnail for Lie algebra representation
    v = ρ(X)(v). The most basic example of a Lie algebra representation is the adjoint representation of a Lie algebra g {\displaystyle {\mathfrak {g}}} on...
    28 KB (4,312 words) - 17:24, 28 November 2024
  • every representation of the Lie algebra of SO(3) does give rise to a representation of SU(2). An example of a Lie group representation is the adjoint representation...
    27 KB (4,460 words) - 21:24, 13 June 2025
  • Hermitian adjoint (adjoint of a linear operator) in functional analysis Adjoint endomorphism of a Lie algebra Adjoint representation of a Lie group Adjoint functors...
    1 KB (194 words) - 09:14, 18 September 2023
  • Thumbnail for SL2(R)
    real Lie group of dimension 3 with applications in geometry, topology, representation theory, and physics. SL(2, R) acts on the complex upper half-plane by...
    21 KB (2,988 words) - 07:43, 2 July 2025
  • transpose in the definition of the dual representation may be identified with the ordinary matrix transpose. Since the adjoint of a matrix is the complex conjugate...
    10 KB (1,699 words) - 19:20, 8 October 2024
  • {g}})\subset \mathrm {GL} ({\mathfrak {g}})} be the (left) adjoint representation of G. The adjoint bundle of P is the associated bundle a d P = P × A d g...
    5 KB (819 words) - 10:14, 8 February 2025
  • Thumbnail for Representation theory
    Representation theory is a branch of mathematics that studies abstract algebraic structures by representing their elements as linear transformations of...
    56 KB (7,331 words) - 19:13, 5 June 2025
  • Thumbnail for E8 (mathematics)
    compact Lie groups in that its non-trivial representation of smallest dimension is the adjoint representation (of dimension 248) acting on the Lie algebra...
    46 KB (6,100 words) - 13:08, 16 January 2025
  • Thumbnail for Killing form
    their fundamental matrix representation):[citation needed] The table shows that the Dynkin index for the adjoint representation is equal to twice the dual...
    13 KB (1,865 words) - 05:58, 30 June 2025
  • mathematics, the coadjoint representation K {\displaystyle K} of a Lie group G {\displaystyle G} is the dual of the adjoint representation. If g {\displaystyle...
    5 KB (867 words) - 09:25, 2 August 2024
  • Thumbnail for Cartan subalgebra
    addition g {\displaystyle {\mathfrak {g}}} is semisimple, then the adjoint representation presents g {\displaystyle {\mathfrak {g}}} as a linear Lie algebra...
    15 KB (2,053 words) - 11:13, 22 February 2025
  • in the space of tensors. The adjoint representation of the simple Lie group of type E8 is a fundamental representation. The irreducible representations...
    3 KB (475 words) - 08:23, 28 August 2022
  • Thumbnail for Representation theory of the Lorentz group
    the two above representations are the adjoint representation of the Lie algebra and the adjoint representation of the group respectively. The corresponding...
    150 KB (19,763 words) - 06:35, 10 May 2025
  • equivalent to the following identity between the operators of the adjoint representation: ad [ x , y ] = [ ad x , ad y ] . {\displaystyle \operatorname {ad}...
    8 KB (1,241 words) - 03:08, 4 April 2025
  • {\displaystyle l=1} ) is the 3 representation, the adjoint representation. It describes 3-d rotations, the standard representation of SO(3), so real numbers...
    19 KB (3,369 words) - 19:06, 2 December 2024
  • {\displaystyle A} on an inner product space defines a Hermitian adjoint (or adjoint) operator A ∗ {\displaystyle A^{*}} on that space according to the...
    18 KB (3,270 words) - 01:18, 11 March 2025
  • The Riesz representation theorem, sometimes called the Riesz–Fréchet representation theorem after Frigyes Riesz and Maurice René Fréchet, establishes...
    75 KB (12,630 words) - 21:25, 29 January 2025
  • Thumbnail for F4 (mathematics)
    379848, 412776, 420147, 627912... The 52-dimensional representation is the adjoint representation, and the 26-dimensional one is the trace-free part of...
    8 KB (1,007 words) - 10:38, 3 July 2025
  • Thumbnail for Quantum chromodynamics
    are the gluon fields, dynamical functions of spacetime, in the adjoint representation of the SU(3) gauge group, indexed by a, b and c running from 1 {\displaystyle...
    45 KB (5,933 words) - 01:11, 28 June 2025
  • this relationship are known as adjoint functors, one being the left adjoint and the other the right adjoint. Pairs of adjoint functors are ubiquitous in mathematics...
    64 KB (10,260 words) - 08:58, 28 May 2025
  • Thumbnail for Gluon
    the fundamental representation (triplet, denoted 3) of the color gauge group, SU(3). The gluons are vectors in the adjoint representation (octets, denoted...
    25 KB (2,587 words) - 22:31, 6 May 2025
  • repeated derivatives of a product, can be written abstractly using the adjoint representation: x n y = ∑ k = 0 n ( n k ) ad x k ( y ) x n − k . {\displaystyle...
    14 KB (2,554 words) - 05:29, 30 June 2025
  • Thumbnail for Pion
    triplet representation or the adjoint representation 3 of SU(2). By contrast, the up and down quarks transform according to the fundamental representation 2...
    28 KB (3,019 words) - 18:21, 19 June 2025
  • Thumbnail for Representation of a Lie group
    Representation theory of the Lorentz group Representation theory of Hopf algebras Adjoint representation of a Lie group List of Lie group topics Symmetry...
    34 KB (5,246 words) - 08:31, 14 January 2025