• ring theory, a torsion element is an element of a module that yields zero when multiplied by some non-zero-divisor of the ring. The torsion submodule of...
    12 KB (1,657 words) - 00:52, 14 September 2024
  • a ring Torsion-free module, in algebra See also Torsion-free (disambiguation) Analytic torsion (Reidemeister torsion, R-torsion, Franz torsion, de Rham...
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  • torsion subgroup makes torsion-free abelian groups into a reflective subcategory. Torsion (algebra) Torsion-free abelian group Torsion abelian group Serge...
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  • Thumbnail for Torsion-free abelian group
    mathematics, specifically in abstract algebra, a torsion-free abelian group is an abelian group which has no non-trivial torsion elements; that is, a group in...
    6 KB (783 words) - 23:28, 15 December 2023
  • In algebra, a torsion-free module is a module over a ring such that zero is the only element annihilated by a regular element (non zero-divisor) of the...
    4 KB (597 words) - 13:20, 10 November 2024
  • order. A torsion-free abelian group is an abelian group in which the identity element is the only element with finite order. Torsion (algebra) Jordan–Schur...
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  • algebra Magma object Torsion (algebra) Symbolic mathematics Finite field arithmetic Gröbner basis Buchberger's algorithm List of commutative algebra topics...
    12 KB (1,129 words) - 10:50, 10 October 2024
  • In algebraic geometry and number theory, the torsion conjecture or uniform boundedness conjecture for torsion points for abelian varieties states that...
    12 KB (1,411 words) - 14:57, 31 August 2024
  • Thumbnail for Exterior algebra
    In mathematics, the exterior algebra or Grassmann algebra of a vector space V {\displaystyle V} is an associative algebra that contains V , {\displaystyle...
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  • In abstract algebra, a torsion abelian group is an abelian group in which every element has finite order. For example, the torsion subgroup of an abelian...
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  • Tor functor (redirect from Torsion functor)
    associative algebras can all be defined in terms of Tor. The name comes from a relation between the first Tor group Tor1 and the torsion subgroup of an...
    13 KB (2,030 words) - 16:56, 21 August 2024
  • Thumbnail for Torsion tensor
    In differential geometry, the torsion tensor is a tensor that is associated to any affine connection. The torsion tensor is a bilinear map of two input...
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  • domain where zero is the only torsion element Torsion-free abelian group, an abelian group which is a torsion-free group Torsion-free rank, the cardinality...
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  • central notions of commutative algebra and homological algebra, and are used widely in algebraic geometry and algebraic topology. In a vector space, the...
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  • Thumbnail for Hodge conjecture
    Hodge conjecture (category Algebraic geometry)
    unsolved problem in algebraic geometry and complex geometry that relates the algebraic topology of a non-singular complex algebraic variety to its subvarieties...
    22 KB (2,983 words) - 16:17, 17 August 2024
  • K-theory. The earliest application of algebraic K-theory to topology was Whitehead's construction of Whitehead torsion. A closely related construction was...
    76 KB (10,383 words) - 14:00, 30 September 2024
  • Thumbnail for Abelian group
    decidable. Most algebraic structures other than Boolean algebras are undecidable. There are still many areas of current research: Amongst torsion-free abelian...
    36 KB (5,284 words) - 05:57, 6 November 2024
  • the module is a torsion module, which happens if and only if the support has dimension at most 1. Many of the modules over this algebra that occur in Iwasawa...
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  • element with itself is 2-torsion, if it does not actually vanish. Whitehead product Serre, Jean-Pierre (2006). Lie Algebras and Lie Groups. 1964 lectures...
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  • same for compact Riemannian manifolds. Reidemeister torsion was the first invariant in algebraic topology that could distinguish between closed manifolds...
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  • In algebra, flat modules include free modules, projective modules, and, over a principal ideal domain, torsion-free modules. Formally, a module M over...
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  • always a torsion group. According to the Artin–Wedderburn theorem a finite-dimensional simple algebra A is isomorphic to the matrix algebra M(n,S) for...
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  • In mathematics, the tensor algebra of a vector space V, denoted T(V) or T•(V), is the algebra of tensors on V (of any rank) with multiplication being the...
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  • In mathematics, an Azumaya algebra is a generalization of central simple algebras to R {\displaystyle R} -algebras where R {\displaystyle R} need not...
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  • finite CW-complexes being a simple homotopy equivalence is its Whitehead torsion τ ( f ) {\displaystyle \tau (f)} which is an element in the Whitehead group...
    12 KB (1,902 words) - 13:53, 19 September 2024
  • Thumbnail for Arithmetic geometry
    mathematics, arithmetic geometry is roughly the application of techniques from algebraic geometry to problems in number theory. Arithmetic geometry is centered...
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  • In algebra, a group ring is a free module and at the same time a ring, constructed in a natural way from any given ring and any given group. As a free...
    21 KB (3,985 words) - 12:37, 31 May 2024
  • case A is hereditary (i.e. B is a tilted algebra), the global dimension of B is at most 2, and the torsion pair ( X , Y ) {\displaystyle ({\mathcal {X}}...
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  • integers of an algebraic number field K {\displaystyle K} is the ring of all algebraic integers contained in K {\displaystyle K} . An algebraic integer is...
    8 KB (1,054 words) - 14:36, 16 May 2024
  • Thumbnail for Transpose
    Transpose (category Abstract algebra)
    In linear algebra, the transpose of a matrix is an operator which flips a matrix over its diagonal; that is, it switches the row and column indices of...
    20 KB (2,525 words) - 07:55, 7 October 2024