• In mathematics, the CartanKähler theorem is a major result on the integrability conditions for differential systems, in the case of analytic functions...
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  • Thumbnail for Erich Kähler
    philosophical papers. As a mathematician Kähler is known for a number of contributions: the CartanKähler theorem on solutions of non-linear analytic differential...
    10 KB (1,021 words) - 21:17, 26 October 2024
  • Kuranishi provided a proof of Cartan's conjecture. This theorem is used in infinite-dimensional Lie theory. Cartan-Kähler theorem Bryant, Robert L.; Chern...
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  • groups Hypercomplex numbers, division algebras Systems of PDEs, CartanKähler theorem Theory of equivalence Integrable systems, theory of prolongation...
    29 KB (3,412 words) - 17:23, 16 May 2025
  • coframes must be real analytic in order for this to hold, because the Cartan-Kähler theorem requires analyticity.) Prolongation. This is the most intricate...
    8 KB (1,252 words) - 07:17, 15 March 2024
  • Cartan–Kähler theorem (partial differential equations) Cartan–Kuranishi prolongation theorem (partial differential equations) Cauchy–Kowalevski theorem (partial...
    78 KB (6,293 words) - 12:16, 2 May 2025
  • decomposition Cartan-Iwasawa-Malcev theorem CartanKähler theorem Cartan–Karlhede algorithm Cartan–Weyl theory Cartan–Weyl basis Cartan–Killing form Cartan–Kuranishi...
    2 KB (201 words) - 05:40, 27 September 2024
  • Thumbnail for Frobenius theorem (differential topology)
    results such as Darboux's theorem and the Cartan-Kähler theorem. Despite being named for Ferdinand Georg Frobenius, the theorem was first proven by Alfred...
    28 KB (4,231 words) - 12:44, 26 May 2025
  • Thumbnail for Eugenio Calabi
    proposal for finding Kähler metrics of constant scalar curvature.[C82a] More broadly, Calabi introduced the notion of an extremal Kähler metric, and established...
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  • these are the CartanKähler theorem, which only works for real analytic differential systems, and the Cartan–Kuranishi prolongation theorem. See § Further...
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  • In mathematics, the Borel–Weil–Bott theorem is a basic result in the representation theory of Lie groups, showing how a family of representations can...
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  • Thumbnail for Holonomy
    Ambrose–Singer theorem. The study of Riemannian holonomy has led to a number of important developments. Holonomy was introduced by Élie Cartan (1926) in order...
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  • methods of differential geometry. For instance, we can apply the CartanKähler_theorem to a system of partial differential equations by writing down the...
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  • This relation is called the Cartan–Thullen theorem. See Oka's lemma Oka's proof uses Oka pseudoconvex instead of Cartan pseudoconvex. There are some...
    124 KB (17,717 words) - 09:54, 7 April 2025
  • Carpenter CartanKähler theorem – Élie Cartan, Erich Kähler Casimir effect – Hendrik Casimir Catalan's conjecture (a.k.a. Mihăilescu's theorem), Catalan...
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  • Thumbnail for Differential geometry
    (J,g)} is called a Kähler structure, and a Kähler manifold is a manifold endowed with a Kähler structure. In particular, a Kähler manifold is both a complex...
    46 KB (5,964 words) - 21:55, 19 May 2025
  • theorem for the cohomology of line bundles on compact Kähler manifolds, and Cartan's theorems A and B for the cohomology of coherent sheaves on affine...
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  • On a Kähler manifold, the (p, q) components of a harmonic form are again harmonic. Therefore, for any compact Kähler manifold X, the Hodge theorem gives...
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  • 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...
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  • Morse index, the Rauch comparison theorems, and the Cartan–Hadamard theorem. Then it ascends to complex manifolds, Kähler manifolds, homogeneous spaces,...
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  • Thumbnail for F4 (mathematics)
    Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold Ricci-flat manifold Calabi–Yau manifold Hyperkähler manifold K3...
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  • However, Kähler manifolds already possess holonomy in U ( n ) {\displaystyle U(n)} , and so the (restricted) holonomy of a Ricci-flat Kähler manifold...
    34 KB (5,863 words) - 23:45, 30 December 2024
  • following sequence of results. Complex analysis was revolutionized by Cartan's theorems A and B in 1953. These results say that if F {\displaystyle {\mathcal...
    26 KB (4,664 words) - 11:28, 9 October 2024
  • Thumbnail for Symmetric space
    Riemannian metric, is called quaternion-Kähler symmetric space. An irreducible symmetric space G / K is quaternion-Kähler if and only if isotropy representation...
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  • Thumbnail for Simple Lie group
    this work was later perfected by Élie Cartan. The final classification is often referred to as Killing-Cartan classification. Unfortunately, there is...
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  • Thumbnail for Riemannian manifold
    explicitly defined only in 1913 in a book by Hermann Weyl. Élie Cartan introduced the Cartan connection, one of the first concepts of a connection. Levi-Civita...
    59 KB (8,684 words) - 09:42, 28 May 2025
  • Thumbnail for Shiing-Shen Chern
    webs then on the Cartan-Kähler theory and invariant theory. He would often eat lunch and chat in German with fellow colleague Erich Kähler. He had a three-year...
    54 KB (6,147 words) - 19:28, 30 May 2025
  • Thumbnail for G2 (mathematics)
    which we now call g 2 {\displaystyle {\mathfrak {g}}_{2}} . In 1893, Élie Cartan published a note describing an open set in C 5 {\displaystyle \mathbb {C}...
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  • Gauss–Bonnet theorem Hopf–Rinow theorem Cartan–Hadamard theorem Myers theorem Rauch comparison theorem Morse index theorem Synge theorem Weinstein theorem Toponogov...
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  • {\displaystyle k=2n+2.} Calabi–Yau manifolds admit an Einstein metric that is also Kähler, with Einstein constant k = 0 {\displaystyle k=0} . Such metrics are not...
    7 KB (1,016 words) - 23:36, 4 February 2025