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...
2 KB (226 words) - 14:35, 19 January 2024
torsion subgroup makes torsion-free abelian groups into a reflective subcategory. Torsion (algebra) Torsion-free abelian group Torsion abelian group Serge...
7 KB (911 words) - 21:28, 31 July 2024
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...
5 KB (635 words) - 15:06, 31 August 2024
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
In mathematics, the exterior algebra or Grassmann algebra of a vector space V {\displaystyle V} is an associative algebra that contains V , {\displaystyle...
77 KB (12,096 words) - 14:05, 5 November 2024
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...
459 bytes (48 words) - 08:28, 4 August 2020
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
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...
27 KB (4,357 words) - 11:40, 1 October 2024
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...
817 bytes (140 words) - 08:53, 27 August 2016
Module (mathematics) (redirect from Module (algebra))
central notions of commutative algebra and homological algebra, and are used widely in algebraic geometry and algebraic topology. In a vector space, the...
22 KB (2,966 words) - 06:20, 18 October 2024
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
Abelian group (section Torsion groups)
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...
9 KB (1,182 words) - 08:57, 7 November 2023
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...
1 KB (160 words) - 05:32, 13 May 2024
same for compact Riemannian manifolds. Reidemeister torsion was the first invariant in algebraic topology that could distinguish between closed manifolds...
14 KB (2,129 words) - 08:30, 2 August 2024
Flat module (redirect from Faithfully flat algebra)
In algebra, flat modules include free modules, projective modules, and, over a principal ideal domain, torsion-free modules. Formally, a module M over...
30 KB (4,590 words) - 03:05, 9 August 2024
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...
8 KB (1,134 words) - 12:54, 1 September 2022
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...
23 KB (4,160 words) - 15:09, 12 January 2024
In mathematics, an Azumaya algebra is a generalization of central simple algebras to R {\displaystyle R} -algebras where R {\displaystyle R} need not...
17 KB (3,208 words) - 22:29, 28 October 2023
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
Arithmetic geometry (redirect from Arithmetical algebraic geometry)
mathematics, arithmetic geometry is roughly the application of techniques from algebraic geometry to problems in number theory. Arithmetic geometry is centered...
15 KB (1,464 words) - 19:56, 6 May 2024
Group ring (section Group algebra over a finite group)
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
Tilting theory (redirect from Tilted algebra)
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}}...
14 KB (1,690 words) - 01:23, 26 January 2024
Ring of integers (redirect from Algebraic number ring)
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
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