• Thumbnail for Orthogonal group
    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
  • 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
  • × n orthogonal matrices, under multiplication, forms the group O(n), known as the orthogonal group. The subgroup SO(n) consisting of orthogonal matrices...
    36 KB (4,817 words) - 07:59, 9 July 2025
  • 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 (1,872 words) - 02:43, 10 July 2025
  • Thumbnail for Unitary group
    symplectic form, and that this J is orthogonal; writing all the groups as matrix groups fixes a J (which is orthogonal) and ensures compatibility). In fact...
    21 KB (3,297 words) - 11:34, 30 April 2025
  • Thumbnail for Euclidean group
    transformations). The group depends only on the dimension n of the space, and is commonly denoted E(n) or ISO(n), for inhomogeneous special orthogonal group. The Euclidean...
    16 KB (2,147 words) - 02:29, 16 December 2024
  • 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...
    15 KB (2,502 words) - 15:43, 25 March 2025
  • multiplication, the rotation group is isomorphic to the special orthogonal group SO(3). Improper rotations correspond to orthogonal matrices with determinant...
    65 KB (11,406 words) - 13:23, 8 July 2025
  • Thumbnail for Group of Lie type
    orders of such groups, with a view to classifying cases of coincidence. A classical group is, roughly speaking, a special linear, orthogonal, symplectic...
    22 KB (2,985 words) - 04:28, 23 November 2024
  • Thumbnail for Conformal group
    conformal groups are particularly important: The conformal orthogonal group. If V is a vector space with a quadratic form Q, then the conformal orthogonal group...
    13 KB (1,935 words) - 11:07, 24 June 2025
  • Thumbnail for Spin group
    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)...
    28 KB (4,155 words) - 09:10, 16 May 2025
  • whose vectors are orthonormal, that is, they are all unit vectors and orthogonal to each other. For example, the standard basis for a Euclidean space R...
    15 KB (2,690 words) - 10:50, 6 February 2025
  • Thumbnail for Simple Lie group
    neither simple nor semisimple. Another counter-example are the special orthogonal groups in even dimension. These have the matrix − I {\displaystyle -I} in...
    35 KB (2,384 words) - 12:47, 9 June 2025
  • Thumbnail for Group action
    orthogonal group O(n, K), special orthogonal group SO(n, K), and symplectic group Sp(n, K)) are Lie groups that act on the vector space Kn. The group...
    46 KB (5,742 words) - 17:46, 24 May 2025
  • Thumbnail for Lie group
    them in terms of group theory. Lie and other mathematicians showed that the most important equations for special functions and orthogonal polynomials tend...
    65 KB (9,490 words) - 15:29, 22 April 2025
  • Thumbnail for Orthogonality
    a right angle, whereas orthogonal is used in generalizations, such as orthogonal vectors or orthogonal curves. Orthogonality is also used with various...
    16 KB (2,698 words) - 18:06, 20 May 2025
  • Thumbnail for Point group
    be a fixed point, and every point group in dimension d is then a subgroup of the orthogonal group O(d). Point groups are used to describe the symmetries...
    69 KB (1,170 words) - 13:35, 16 April 2025
  • Thumbnail for Circle group
    circle group is isomorphic to the special orthogonal group ⁠ S O ( 2 ) {\displaystyle \mathrm {SO} (2)} ⁠. One way to think about the circle group is that...
    13 KB (2,078 words) - 16:41, 10 January 2025
  • onto the orthogonal group. We define the special orthogonal group to be the image of Γ0. If K does not have characteristic 2 this is just the group of elements...
    65 KB (9,287 words) - 07:33, 12 May 2025
  • Thumbnail for Point reflection
    of the orthogonal group O ( n ) {\displaystyle O(n)} . It is a product of n orthogonal reflections (reflection through the axes of any orthogonal basis);...
    21 KB (2,742 words) - 08:37, 30 April 2025
  • Thumbnail for Classical group
    the special orthogonal group SOn(R) and quotients, the projective orthogonal group POn(R), and the projective special orthogonal group PSOn(R). In characteristic...
    48 KB (7,794 words) - 14:03, 12 April 2025
  • Thumbnail for Semidirect product
    Semidirect product (category Group products)
    2) is given by matrix multiplication: φ(h)(n) = hn. The orthogonal group O(n) of all orthogonal real n × n matrices (intuitively the set of all rotations...
    31 KB (4,626 words) - 15:58, 29 June 2025
  • Thumbnail for Algebraic group
    algebraic groups belongs both to algebraic geometry and group theory. Many groups of geometric transformations are algebraic groups, including orthogonal groups...
    16 KB (2,244 words) - 15:28, 15 May 2025
  • Thumbnail for Symmetry group
    the orthogonal group O(n) by choosing the origin to be a fixed point. The proper symmetry group is then a subgroup of the special orthogonal group SO(n)...
    17 KB (2,283 words) - 19:34, 22 March 2024
  • descriptive complexity Special orthogonal group, a subset of an orthogonal group SO(2), a term used in mathematics, the group of rotations about a fixed point...
    4 KB (608 words) - 03:19, 21 April 2025
  • homotopy groups are used in algebraic topology to classify topological spaces. The first and simplest homotopy group is the fundamental group, denoted...
    20 KB (3,432 words) - 14:48, 25 May 2025
  • Thumbnail for Topological group
    The orthogonal group is compact as a topological space. Much of Euclidean geometry can be viewed as studying the structure of the orthogonal group, or...
    51 KB (7,458 words) - 10:58, 15 April 2025
  • }. The center of the orthogonal group, On(F) is {In, −In}. The center of the special orthogonal group, SO(n) is the whole group when n = 2, and otherwise...
    12 KB (1,189 words) - 19:22, 28 May 2025
  • Thumbnail for Linear algebraic group
    multiplication) that is defined by polynomial equations. An example is the orthogonal group, defined by the relation M T M = I n {\displaystyle M^{T}M=I_{n}} where...
    41 KB (6,000 words) - 12:59, 4 October 2024
  • Thumbnail for Compact group
    group T and the torus groups Tn, the orthogonal group O(n), the special orthogonal group SO(n) and its covering spin group Spin(n), the unitary group...
    30 KB (4,472 words) - 20:43, 23 November 2024