• Thumbnail for Issai Schur
    Issai Schur (10 January 1875 – 10 January 1941) was a Russian mathematician who worked in Germany for most of his life. He studied at the University of...
    29 KB (3,949 words) - 23:18, 12 June 2024
  • mathematical discipline of linear algebra, the Schur decomposition or Schur triangulation, named after Issai Schur, is a matrix decomposition. It allows one...
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  • Schur's theorem is any of several theorems of the mathematician Issai Schur. In differential geometry, Schur's theorem is a theorem of Axel Schur. In...
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  • Thumbnail for Schur multiplier
    )} of a group G. It was introduced by Issai Schur (1904) in his work on projective representations. The Schur multiplier M ⁡ ( G ) {\displaystyle \operatorname...
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  • after Issai Schur, Schur-convex functions are used in the study of majorization. A function f is 'Schur-concave' if its negative, −f, is Schur-convex...
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  • is named after two pioneers of representation theory of Lie groups, Issai Schur, who discovered the phenomenon, and Hermann Weyl, who popularized it...
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  • M/D yields the generalized Schur complement. The Schur complement is named after Issai Schur who used it to prove Schur's lemma, although it had been...
    15 KB (2,901 words) - 13:16, 1 July 2024
  • In mathematics, Schur polynomials, named after Issai Schur, are certain symmetric polynomials in n variables, indexed by partitions, that generalize the...
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  • the discipline of representation theory, the Schur indicator, named after Issai Schur, or Frobenius–Schur indicator describes what invariant bilinear forms...
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  • Israeli educator Friedrich Schur (1856-1932), German mathematician Fritz Schur (born 1951), Danish businessman Issai Schur (1875–1941), Lithuanian-German-Israeli...
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  • Thumbnail for Hadamard product (matrices)
    either French mathematician Jacques Hadamard or German mathematician Issai Schur. The Hadamard product is associative and distributive. Unlike the matrix...
    21 KB (2,702 words) - 08:39, 6 July 2024
  • In mathematics, particularly linear algebra, the Schur–Horn theorem, named after Issai Schur and Alfred Horn, characterizes the diagonal of a Hermitian...
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  • after Issai Schur. Frobenius–Schur indicator Herz–Schur multiplier Jordan–Schur theorem Lehmer–Schur algorithm Schur algebra Schur class Schur's conjecture...
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  • after Issai Schur who used it to prove the Schur orthogonality relations and develop the basics of the representation theory of finite groups. Schur's lemma...
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  • In mathematics, the Lehmer–Schur algorithm (named after Derrick Henry Lehmer and Issai Schur) is a root-finding algorithm for complex polynomials, extending...
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  • on the existence of finite simple groups. The transfer was defined by Issai Schur (1902) and rediscovered by Emil Artin (1929). The construction of the...
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  • In mathematics, Schur's property, named after Issai Schur, is the property of normed spaces that is satisfied precisely if weak convergence of sequences...
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  • matrix. The result is named after Issai Schur (Schur 1911, p. 14, Theorem VII) (note that Schur signed as J. Schur in Journal für die reine und angewandte...
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  • In numerical analysis, the Schur complement method, named after Issai Schur, is the basic and the earliest version of non-overlapping domain decomposition...
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  • theory. The Schur–Zassenhaus theorem was introduced by Zassenhaus (1937, 1958, Chapter IV, section 7). Theorem 25, which he credits to Issai Schur, proves...
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  • mathematical field of representation theory, a Herz–Schur multiplier (named after Carl S. Herz and Issai Schur) is a special kind of mapping from a group to...
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  • In mathematics, the Schur orthogonality relations, which were proven by Issai Schur through Schur's lemma, express a central fact about representations...
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  • Thumbnail for Isaac Jacob Schoenberg
    Göttingen, working on a topic in analytic number theory suggested by Issai Schur. He presented his thesis to the University of Iași, obtaining his Ph...
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  • by Leon Lichtenstein together with Konrad Knopp, Erhard Schmidt, and Issai Schur. Past editors include Erich Kamke, Friedrich Karl Schmidt, Rolf Nevanlinna...
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  • Thumbnail for Lists of mathematics topics
    List of things named after Bernhard Riemann List of things named after Issai Schur List of things named after Anatoliy Skorokhod List of things named after...
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  • of any finite group, as discovered by Ferdinand Georg Frobenius and Issai Schur. Let G be a compact group. The theorem has three parts. The first part...
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  • In mathematical analysis, the Schur test, named after German mathematician Issai Schur, is a bound on the L 2 → L 2 {\displaystyle L^{2}\to L^{2}} operator...
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  • mathematics, especially in the field of representation theory, Schur functors (named after Issai Schur) are certain functors from the category of modules over...
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  • Thumbnail for Ferdinand Georg Frobenius
    Charles W. (2003), Pioneers of Representation Theory: Frobenius, Burnside, Schur, and Brauer, History of Mathematics, Providence, R.I.: American Mathematical...
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  • linear group, this result was proved for its special unitary subgroup by Issai Schur (1924, presaged by earlier work). The special linear group is a complex...
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