In mathematics, the indefinite orthogonal group, O(p, q) is the Lie group of all linear transformations of an n-dimensional real vector space that leave...
13 KB (1,672 words) - 09:43, 1 June 2025
In mathematics, the orthogonal group in dimension n, denoted O(n), is the group of distance-preserving transformations of a Euclidean space of dimension...
56 KB (7,882 words) - 17:12, 19 June 2025
generalized unitary group as an algebraic group, one can take its points over various algebras. Analogous to the indefinite orthogonal groups, one can define...
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transformations. Mathematically, the Lorentz group may be described as the indefinite orthogonal group O(1, 3), the matrix Lie group that preserves the quadratic form...
66 KB (9,875 words) - 09:40, 29 May 2025
mathematics the spin group, denoted Spin(n), is a Lie group whose underlying manifold is the double cover of the special orthogonal group SO(n) = SO(n, R)...
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is the indefinite orthogonal group O(3,1), a Lie group. In other words, the Lorentz group is O(3,1). As presented in this article, any Lie groups mentioned...
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Squeeze mapping (section Group theory)
view of the classical groups, the group of squeeze mappings is SO+(1,1), the identity component of the indefinite orthogonal group of 2×2 real matrices...
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geometry and linear algebra, the projective orthogonal group PO is the induced action of the orthogonal group of a quadratic space V = (V,Q) on the associated...
13 KB (1,874 words) - 06:22, 28 December 2022
Spin representation (category Representation theory of Lie groups)
representations of the orthogonal or special orthogonal groups in arbitrary dimension and signature (i.e., including indefinite orthogonal groups). More precisely...
33 KB (4,482 words) - 07:13, 5 September 2024
that (p, q) lies on the unit hyperbola. Such matrices form the indefinite orthogonal group O(1,1) with one-dimensional Lie algebra spanned by the anti-diagonal...
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isometry group is a compact orthogonal group O(n). This stands in contrast with the case of isotropic forms, when the corresponding group, the indefinite orthogonal...
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fields. For example, for the orthogonal group, an O(n)-structure defines a Riemannian metric, and for the special linear group an SL(n,R)-structure is the...
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space Orthogonality Orthogonal complement Orthogonal projection Orthogonal group Pseudo-Euclidean space Null vector Indefinite orthogonal group Orientation...
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applications: see proper time, for example. The rotations group of such space is the indefinite orthogonal group O(q), also denoted as O(k, n − k) without a reference...
19 KB (2,367 words) - 07:09, 14 July 2024
matrices. When interpreted as the matrices of the action of a set of orthogonal basis vectors for contravariant vectors in Minkowski space, the column...
61 KB (7,307 words) - 07:05, 17 June 2025
(for example, a pseudo-Riemannian metric, on the algebra of the indefinite orthogonal group so(p,q)). That is, structure constants are often written with...
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group is a certain subgroup of the Clifford algebra associated to a quadratic space. It maps 2-to-1 to the orthogonal group, just as the spin group maps...
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Point reflection (redirect from Point reflection group)
every indefinite orthogonal group as well. It equals the identity if and only if the characteristic is 2. It is the longest element of the Coxeter group of...
21 KB (2,742 words) - 08:37, 30 April 2025
the special orthogonal group SOn(R) and quotients, the projective orthogonal group POn(R), and the projective special orthogonal group PSOn(R). In characteristic...
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SL2(R) (category Group theory)
to the indefinite orthogonal group SO+(1,2). It follows that SL(2, R) is isomorphic to the spin group Spin(2,1)+. Elements of the modular group PSL(2, Z)...
21 KB (2,988 words) - 07:43, 2 July 2025
Unit hyperbola (category Linear algebraic groups)
2 − y 2 = 1. {\displaystyle x^{2}-y^{2}=1.} In the study of indefinite orthogonal groups, the unit hyperbola forms the basis for an alternative radial...
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also be defined as the quotient O(1, n) / O(1, n − 1) of two indefinite orthogonal groups, which shows that it is a non-Riemannian symmetric space. Topologically...
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Cartan–Dieudonné theorem (category Theorems in group theory)
Then, every element of the orthogonal group O(V, b) is a composition of at most n reflections. Indefinite orthogonal group Coordinate rotations and reflections...
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1\end{matrix}}} It forms an indefinite orthogonal group called the Lorentz group O(1,n), while the case det g=+1 forms the restricted Lorentz group SO(1,n). The quadratic...
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De Sitter invariant special relativity (category Group theory)
speculative idea that the fundamental symmetry group of spacetime is the indefinite orthogonal group SO(4,1), that of de Sitter space. In the standard...
28 KB (3,598 words) - 19:25, 21 November 2024
the Minkowski space. The indefinite orthogonal group O(1,n), also called the (n+1)-dimensional Lorentz group, is the Lie group of real (n+1)×(n+1) matrices...
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multiplication, the rotation group is isomorphic to the special orthogonal group SO(3). Improper rotations correspond to orthogonal matrices with determinant...
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directions: the gauge group of (pseudo-)Riemannian geometry must be the indefinite orthogonal group O(s,r) in general, or the Lorentz group O(3,1) for space-time...
25 KB (4,484 words) - 06:31, 14 April 2025
versor is a generalization of quaternionic versors to indefinite orthogonal groups, such as Lorentz group. It is defined as a quantity of the form exp (...
22 KB (2,945 words) - 03:51, 4 June 2025
The Schrödinger model for the minimal representation of the indefinite orthogonal group O(p, q). Memoirs of AMS. ISBN 978-0-8218-4757-2. Kobayashi, T...
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