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In mathematics, the general linear group of degree n is the set of n×n invertible matrices, together with the operation of ordinary matrix multiplication.This forms a group, because the product of two invertible matrices is again invertible, and the inverse of an invertible matrix is invertible, with the identity matrix as the identity element of the group.
One GL-type superconductor is the famous YBCO, and generally all cuprates. [ 1 ] Later, a version of Ginzburg–Landau theory was derived from the Bardeen–Cooper–Schrieffer microscopic theory by Lev Gor'kov , [ 2 ] thus showing that it also appears in some limit of microscopic theory and giving microscopic interpretation of all its parameters.
The eleven-plus (11+) is a standardised examination administered to some students in England and Northern Ireland in their last year of primary education, which governs admission to grammar schools and other secondary schools which use academic selection.
In mathematics, the Langlands program is a set of conjectures about connections between number theory and geometry.It was proposed by Robert Langlands (1967, 1970).It seeks to relate Galois groups in algebraic number theory to automorphic forms and representation theory of algebraic groups over local fields and adeles.
Évariste Galois (/ ɡ æ l ˈ w ɑː /; [1] French: [evaʁist ɡalwa]; 25 October 1811 – 31 May 1832) was a French mathematician and political activist. While still in his teens, he was able to determine a necessary and sufficient condition for a polynomial to be solvable by radicals, thereby solving a problem that had been open for 350 years.
As of 2021, it contains words and phrases from more than 107 million academic papers. [ 1 ] [ 2 ] It consists of a table of n-grams (a contiguous sequence of n items) derived from the full text of the articles along with tables of associated keywords and metadata. [ 3 ]
The original 1920 English publication of the paper. Relativity: The Special and the General Theory (German: Über die spezielle und die allgemeine Relativitätstheorie) began as a short paper and was eventually published as a book written by Albert Einstein with the aim of explaining the theory of relativity.
The term grey literature acts as a collective noun to refer to a large number of publications types produced by organizations for various reasons. These include research and project reports, annual or activity reports, theses, conference proceedings, preprints, working papers, newsletters, technical reports, recommendations and technical standards, patents, technical notes, data and statistics ...