mathematics, a separable algebra is a kind of semisimple algebra. It is a generalization to associative algebras of the notion of a separable field extension...
12 KB (1,777 words) - 02:37, 30 August 2024
{F}}).} A separable σ {\displaystyle \sigma } -algebra (or separable σ {\displaystyle \sigma } -field) is a σ {\displaystyle \sigma } -algebra F {\displaystyle...
31 KB (5,528 words) - 06:37, 4 May 2025
In field theory, a branch of algebra, an algebraic field extension E / F {\displaystyle E/F} is called a separable extension if for every α ∈ E {\displaystyle...
21 KB (3,075 words) - 06:19, 18 March 2025
Perfect field (redirect from Characteristic exponent (algebra))
automorphism of k. The separable closure of k is algebraically closed. Every reduced commutative k-algebra A is a separable algebra; i.e., A ⊗ k F {\displaystyle...
9 KB (1,174 words) - 10:35, 19 February 2025
Look up separable in Wiktionary, the free dictionary. Separability may refer to: Separable algebra, a generalization to associative algebras of the notion...
2 KB (245 words) - 12:51, 13 June 2024
For a commutative C*-algebra, A ^ ≅ Prim ( A ) . {\displaystyle {\hat {A}}\cong \operatorname {Prim} (A).} Let H be a separable infinite-dimensional...
12 KB (1,753 words) - 20:34, 24 January 2024
classification is possible, for separable simple nuclear C*-algebras. We begin with the abstract characterization of C*-algebras given in the 1943 paper by...
20 KB (2,830 words) - 09:30, 14 January 2025
Neumann algebras are the direct integral of properly infinite factors. A von Neumann algebra that acts on a separable Hilbert space is called separable. Note...
42 KB (5,917 words) - 00:42, 7 April 2025
Hopf algebra. The axioms are partly chosen so that the category of H-modules is a rigid monoidal category. The unit H-module is the separable algebra HL...
35 KB (4,397 words) - 17:17, 1 February 2025
field of S over K. An algebraic closure Kalg of K contains a unique separable extension Ksep of K containing all (algebraic) separable extensions of K within...
7 KB (992 words) - 13:55, 30 April 2025
called the bidimension of A, measures the failure of separability. Let A be a finite-dimensional algebra over a field k. Then A is an Artinian ring. As A...
31 KB (4,261 words) - 15:34, 11 April 2025
In mathematics, a topological space is called separable if it contains a countable, dense subset; that is, there exists a sequence ( x n ) n = 1 ∞ {\displaystyle...
15 KB (2,090 words) - 10:21, 10 February 2025
commutative algebra, an étale algebra over a field is a special type of algebra, one that is isomorphic to a finite product of finite separable field extensions...
3 KB (354 words) - 12:22, 31 March 2025
. It is well known that the CCR algebra is a simple (unless the sympletic form is degenerate) non-separable algebra and is unique up to isomorphism....
8 KB (1,375 words) - 09:17, 3 July 2024
example of a separable algebra extension since e = ∑ i = 1 n a i ⊗ B b i {\textstyle e=\sum _{i=1}^{n}a_{i}\otimes _{B}b_{i}} is a separability element satisfying...
22 KB (3,230 words) - 08:20, 9 April 2025
Jordan–Chevalley decomposition (redirect from Jordan decomposition in a Lie algebra)
associative algebra over the field K {\displaystyle K} with Jacobson radical J {\displaystyle J} . Then A / J {\displaystyle A/J} is separable if and only...
41 KB (5,909 words) - 04:25, 23 November 2024
algebra Schur algebra Semisimple algebra Separable algebra Shuffle algebra Sigma-algebra Simple algebra Structurable algebra Supercommutative algebra...
2 KB (226 words) - 14:20, 21 November 2024
mathematics, a polynomial P(X) over a given field K is separable if its roots are distinct in an algebraic closure of K, that is, the number of distinct roots...
6 KB (783 words) - 16:55, 16 March 2025
analysis, the Calkin algebra, named after John Williams Calkin, is the quotient of B(H), the ring of bounded linear operators on a separable infinite-dimensional...
4 KB (555 words) - 03:46, 30 November 2024
considerably simpler for algebras on separable spaces and most applications to other areas of mathematics or physics only use separable Hilbert spaces. Note...
10 KB (1,551 words) - 19:33, 9 February 2025
Unitary group (section Degree-2 separable algebras)
groups U(p, q); the field extension can be replaced by any degree 2 separable algebra, most notably a degree 2 extension of a finite field; generalizing...
21 KB (3,297 words) - 11:34, 30 April 2025
Hilbert space (redirect from Separable Hilbert space)
generalizes the notion of Euclidean space. It extends the methods of linear algebra and calculus from the two-dimensional Euclidean plane and three-dimensional...
128 KB (17,489 words) - 05:39, 2 May 2025
In linear algebra, the rank of a matrix A is the dimension of the vector space generated (or spanned) by its columns. This corresponds to the maximal...
29 KB (4,416 words) - 23:46, 28 March 2025
In functional analysis, a branch of mathematics, an operator algebra is an algebra of continuous linear operators on a topological vector space, with...
5 KB (545 words) - 13:58, 27 September 2024
Field (mathematics) (redirect from Field (algebra))
exponential function exp : F → F×). For fields that are not algebraically closed (or not separably closed), the absolute Galois group Gal(F) is fundamentally...
87 KB (10,305 words) - 18:07, 14 March 2025
Dual space (redirect from Duality (linear algebra))
for all vector spaces, and to avoid ambiguity may also be called the algebraic dual space. When defined for a topological vector space, there is a subspace...
45 KB (6,865 words) - 10:32, 17 March 2025
Borel set (redirect from Borel sigma algebra)
Borel sets on X forms a σ-algebra, known as the Borel algebra or Borel σ-algebra. The Borel algebra on X is the smallest σ-algebra containing all open sets...
13 KB (1,792 words) - 19:28, 11 March 2025
Separation of variables (redirect from Separable differential equation)
differential equation for the unknown f ( x ) {\displaystyle f(x)} is separable if it can be written in the form d d x f ( x ) = g ( x ) h ( f ( x ) )...
19 KB (3,402 words) - 03:45, 25 April 2025
In abstract algebra, a Boolean algebra or Boolean lattice is a complemented distributive lattice. This type of algebraic structure captures essential properties...
49 KB (3,372 words) - 02:25, 17 September 2024
Gelfand representation (redirect from C*-algebra representation)
If A is a separable C*-algebra, the weak-* topology is metrizable on bounded subsets. Thus the spectrum of a separable commutative C*-algebra A can be...
12 KB (1,815 words) - 20:45, 25 April 2025