• In mathematics, the Cartan decomposition is a decomposition of a semisimple Lie group or Lie algebra, which plays an important role in their structure...
    9 KB (1,499 words) - 01:00, 15 April 2025
  • of bald spots, is a general property of symmetric spaces in the Cartan decomposition. At each point on the manifold, the algebra of the Killing fields...
    27 KB (4,750 words) - 19:21, 13 April 2025
  • Thumbnail for Complexification (Lie group)
    }} For the complexification GC, the Cartan decomposition is described above. Derived from the polar decomposition in the complex general linear group...
    52 KB (7,216 words) - 14:30, 2 December 2022
  • Q(a) with a = Σ αi ei with αi > 0. In fact the Cartan decomposition for GT follows from the decomposition for GD. Given z in D, there is an element u in...
    109 KB (16,613 words) - 10:11, 9 November 2024
  • Thumbnail for Hermitian symmetric space
    it follows that H/K = G/P. The polar decomposition in the complex linear group G implies the Cartan decomposition H* = K ⋅ exp i m {\displaystyle i{\mathfrak...
    52 KB (7,418 words) - 20:57, 10 January 2024
  • related to the Schubert cell decomposition of Grassmannians: see Weyl group for more details. The Cartan decomposition writes a semisimple real Lie algebra...
    3 KB (392 words) - 15:04, 8 November 2024
  • theory and representation theory, the Levi decomposition, conjectured by Wilhelm Killing and Élie Cartan and proved by Eugenio Elia Levi (1905), states...
    5 KB (472 words) - 15:44, 20 November 2024
  • Thumbnail for Cartan subalgebra
    {g}}\to {\mathfrak {gl}}(V)} there is a decomposition related to the decomposition of the Lie algebra from its Cartan subalgebra. If we set V λ = { v ∈ V...
    15 KB (2,053 words) - 11:13, 22 February 2025
  • mathematics, the term Cartan matrix has three meanings. All of these are named after the French mathematician Élie Cartan. Amusingly, the Cartan matrices in the...
    9 KB (1,336 words) - 21:02, 14 April 2025
  • Thumbnail for Real form (Lie theory)
    {X}^{t}.} Then g0 decomposes into the direct sum of its skew-symmetric part k0 and its symmetric part p0. This is the Cartan decomposition: g 0 = k 0 ⊕ p...
    6 KB (818 words) - 14:46, 20 June 2023
  • {g}}_{0}={\mathfrak {k}}_{0}\oplus {\mathfrak {p}}_{0}} is the corresponding Cartan decomposition a 0 {\displaystyle {\mathfrak {a}}_{0}} is a maximal abelian subalgebra...
    6 KB (990 words) - 23:12, 5 March 2025
  • criterion Cartan decomposition Cartan's equivalence method Cartan formalism (physics) Cartan involution Cartan's magic formula Cartan relations Cartan map Cartan...
    2 KB (201 words) - 05:40, 27 September 2024
  • Thumbnail for Pauli matrices
    that context, the Cartan decomposition given above is called the "Z–Y decomposition of a single-qubit gate". Choosing a different Cartan pair gives a similar...
    45 KB (7,495 words) - 12:51, 23 May 2025
  • rectangular matrices A. Cartan decomposition Algebraic polar decomposition Polar decomposition of a complex measure Lie group decomposition Hall 2015, Section...
    26 KB (4,272 words) - 13:01, 26 April 2025
  • form of the noncompact semisimple Lie group and the corresponding Cartan decomposition. The proof of uniqueness relies on the fact that the corresponding...
    12 KB (1,772 words) - 09:48, 15 April 2025
  • Q (the superscript t means transpose). The Lie algebra admits a Cartan decomposition g = g − 1 ⊕ g 0 ⊕ g 1 {\displaystyle \mathbf {g} =\mathbf {g} _{-1}\oplus...
    21 KB (3,359 words) - 11:22, 10 January 2025
  • the matrix are non-negative integers. The decomposition matrix, multiplied by its transpose, forms the Cartan matrix, listing the composition factors of...
    1 KB (115 words) - 21:03, 14 April 2025
  • Thumbnail for Semisimple Lie algebra
    algebras. For example, the Jordan decomposition in a semisimple Lie algebra coincides with the Jordan decomposition in its representation; this is not...
    41 KB (5,743 words) - 05:34, 4 March 2025
  • seen directly using the Cartan decomposition associated to the symmetric space G/K, a generalisation of the polar decomposition of invertible matrices...
    49 KB (6,698 words) - 22:22, 23 May 2024
  • {\displaystyle {\mathfrak {g}}={\mathfrak {u}}+{\mathfrak {p}}} is a Cartan decomposition, then ( g , s ) {\displaystyle ({\mathfrak {g}},s)} is of noncompact...
    3 KB (396 words) - 19:12, 12 June 2022
  • nilpotency criterion based on the Jordan–Chevalley decomposition, as explained there. Applying Cartan's criterion to the adjoint representation gives: A...
    6 KB (794 words) - 06:27, 5 March 2025
  • nonassociative graded algebra under the bracket operation. A choice of Cartan decomposition endows any semisimple Lie algebra with the structure of a graded...
    9 KB (1,537 words) - 20:28, 18 May 2025
  • Thumbnail for Holonomy
    Riemannian holonomy), holonomy of connections in vector bundles, holonomy of Cartan connections, and holonomy of connections in principal bundles. In each of...
    42 KB (5,911 words) - 15:27, 22 November 2024
  • the universal covering space G/K is actually contractible (by the Cartan decomposition for Lie groups). As an example take G = SL(2, R), K = SO(2) and Γ...
    53 KB (8,137 words) - 07:56, 30 May 2025
  • Thumbnail for E8 (mathematics)
    corresponding root lattice, which has rank 8. The designation E8 comes from the Cartan–Killing classification of the complex simple Lie algebras, which fall into...
    46 KB (6,100 words) - 13:08, 16 January 2025
  • is a semisimple Lie algebra of rank 1 whose compact part (in the Cartan decomposition) is not semisimple. A notable sufficient condition for linearisability...
    87 KB (12,662 words) - 01:05, 28 January 2025
  • 46928.0c, S2CID 14530010 Kobayashi, Toshiyuki (2007), "A generalized Cartan decomposition for the double coset space (U(n1)×U(n2)×U(n3))\U(n)/(U(p)×U(q))"...
    5 KB (532 words) - 13:51, 28 December 2023
  • the complexification of K0. Let G0= K0·P0 be the corresponding Cartan decomposition of G0 and let A be a maximal Abelian subgroup of P0. Flensted-Jensen...
    67 KB (11,769 words) - 12:17, 18 April 2025
  • {\displaystyle \sigma (x)=\|X\|} for x=k exp X with k in K and X in p for a Cartan decomposition G = K exp p of the Lie group G, where ||X|| is a K-invariant Euclidean...
    2 KB (267 words) - 18:41, 26 January 2024
  • respectively. The product of the transpose of D with D itself results in the Cartan matrix, usually denoted C; this is a symmetric matrix such that the entries...
    18 KB (2,613 words) - 08:46, 23 November 2024