• 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...
    28 KB (3,945 words) - 10:28, 13 March 2024
  • is named after two pioneers of representation theory of Lie groups, Issai Schur, who discovered the phenomenon, and Hermann Weyl, who popularized it...
    9 KB (1,457 words) - 15:23, 25 September 2023
  • mathematical discipline of linear algebra, the Schur decomposition or Schur triangulation, named after Issai Schur, is a matrix decomposition. It allows one...
    11 KB (1,327 words) - 00:01, 12 April 2024
  • 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...
    20 KB (2,702 words) - 17:25, 11 April 2024
  • 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 (2,895 words) - 19:34, 3 April 2024
  • 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...
    15 KB (2,008 words) - 22:40, 18 August 2023
  • In mathematics, Schur polynomials, named after Issai Schur, are certain symmetric polynomials in n variables, indexed by partitions, that generalize the...
    20 KB (3,749 words) - 07:34, 31 January 2024
  • 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...
    6 KB (832 words) - 23:22, 19 March 2024
  • 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...
    3 KB (590 words) - 04:51, 21 April 2024
  • Israeli educator Friedrich Schur (1856-1932), German mathematician Fritz Schur (born 1951), Danish businessman Issai Schur (1875–1941), Lithuanian-German-Israeli...
    809 bytes (119 words) - 15:21, 20 September 2023
  • after Issai Schur. Frobenius–Schur indicator Herz–Schur multiplier Jordan–Schur theorem Lehmer–Schur algorithm Schur algebra Schur class Schur's conjecture...
    1 KB (84 words) - 18:45, 21 March 2022
  • 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...
    7 KB (1,421 words) - 23:24, 5 September 2022
  • 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...
    23 KB (3,883 words) - 11:19, 14 March 2024
  • the discipline of representation theory, the Schur indicator, named after Issai Schur, or Frobenius–Schur indicator describes what invariant bilinear forms...
    10 KB (1,405 words) - 22:51, 5 March 2022
  • In mathematics, particularly linear algebra, the Schur–Horn theorem, named after Issai Schur and Alfred Horn, characterizes the diagonal of a Hermitian...
    15 KB (2,888 words) - 11:26, 15 October 2023
  • In mathematics, the Lehmer–Schur algorithm (named after Derrick Henry Lehmer and Issai Schur) is a root-finding algorithm for complex polynomials, extending...
    10 KB (1,693 words) - 02:50, 14 March 2024
  • In mathematics, Schur's property, named after Issai Schur, is the property of normed spaces that is satisfied precisely if weak convergence of sequences...
    2 KB (284 words) - 16:59, 11 February 2021
  • In mathematics, Schur's inequality, named after Issai Schur, establishes that for all non-negative real numbers x, y, z, and t>0,...
    3 KB (606 words) - 02:43, 22 March 2024
  • mathematics, especially in the field of representation theory, Schur functors (named after Issai Schur) are certain functors from the category of modules over...
    7 KB (1,178 words) - 19:11, 4 March 2024
  • 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...
    5 KB (786 words) - 03:58, 13 July 2023
  • In mathematics, the Schur orthogonality relations, which were proven by Issai Schur through Schur's lemma, express a central fact about representations...
    14 KB (2,390 words) - 20:18, 21 January 2024
  • 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...
    2 KB (246 words) - 15:09, 2 February 2021
  • In numerical analysis, the Schur complement method, named after Issai Schur, is the basic and the earliest version of non-overlapping domain decomposition...
    4 KB (623 words) - 15:09, 14 February 2024
  • 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...
    4 KB (918 words) - 19:10, 4 October 2022
  • 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...
    6 KB (509 words) - 13:13, 15 January 2024
  • by Leon Lichtenstein together with Konrad Knopp, Erhard Schmidt, and Issai Schur. Past editors include Erich Kamke, Friedrich Karl Schmidt, Rolf Nevanlinna...
    2 KB (73 words) - 17:58, 22 April 2024
  • In mathematics, Schur algebras, named after Issai Schur, are certain finite-dimensional algebras closely associated with Schur–Weyl duality between general...
    9 KB (1,418 words) - 19:06, 16 March 2024
  • 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...
    16 KB (2,480 words) - 16:29, 15 March 2024
  • 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...
    21 KB (2,591 words) - 15:29, 7 January 2024
  • 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...
    7 KB (866 words) - 06:54, 27 April 2024