• mathematics, the octonions are a normed division algebra over the real numbers, a kind of hypercomplex number system. The octonions are usually represented...
    42 KB (5,316 words) - 02:52, 26 February 2025
  • Cayley–Dickson algebras, for example complex numbers, quaternions, and octonions. These examples are useful composition algebras frequently applied in...
    21 KB (2,554 words) - 06:23, 7 May 2025
  • mathematics, the split-octonions are an 8-dimensional nonassociative algebra over the real numbers. Unlike the standard octonions, they contain non-zero...
    12 KB (1,669 words) - 23:19, 19 February 2025
  • In mathematics, an octonion algebra or Cayley algebra over a field F is a composition algebra over F that has dimension 8 over F. In other words, it is...
    7 KB (820 words) - 15:34, 20 February 2025
  • real octonions O. It is possible to define the concept of an integral octonion analogous to that of an integral quaternion. The integral octonions naturally...
    22 KB (3,576 words) - 20:57, 19 June 2025
  • Thumbnail for G2 (mathematics)
    G2 (mathematics) (category Octonions)
    The compact form of G2 can be described as the automorphism group of the octonion algebra or, equivalently, as the subgroup of SO(7) that preserves any chosen...
    15 KB (2,056 words) - 18:40, 24 July 2024
  • sedenions are obtained by applying the Cayley–Dickson construction to the octonions, which can be mathematically expressed as S = C D ( O , 1 ) {\displaystyle...
    25 KB (3,331 words) - 23:07, 9 December 2024
  • {C} ,} the quaternions H , {\displaystyle \mathbb {H} ,} and lastly the octonions O , {\displaystyle \mathbb {O} ,} where the dimensions of these spaces...
    36 KB (5,937 words) - 20:03, 19 June 2025
  • Thumbnail for Cross product
    for 7-dimensional vectors can be obtained in the same way by using the octonions instead of the quaternions. The nonexistence of nontrivial vector-valued...
    75 KB (11,553 words) - 07:53, 30 June 2025
  • The Geometry of the Octonions is a mathematics book on the octonions, a system of numbers generalizing the complex numbers and quaternions, presenting...
    7 KB (750 words) - 07:08, 18 February 2025
  • Thumbnail for Grand Unified Theory
    generation of 16 fermions can be put into the form of an octonion with each element of the octonion being an 8-vector. If the 3 generations are then put in...
    32 KB (4,146 words) - 19:27, 27 April 2025
  • 8
    triangular faces, whose first stellation is the cube-octahedron compound. The octonions are a hypercomplex normed division algebra that are an extension of the...
    25 KB (2,408 words) - 08:06, 26 June 2025
  • the octonions. The Cayley plane was discovered in 1933 by Ruth Moufang, and is named after Arthur Cayley for his 1845 paper describing the octonions. In...
    4 KB (412 words) - 10:55, 28 November 2024
  • Seven-dimensional cross product (category Octonions)
    The seven-dimensional cross product has the same relationship to the octonions as the three-dimensional product does to the quaternions. The seven-dimensional...
    33 KB (4,789 words) - 21:22, 19 June 2025
  • alternative, but so too are some strictly non-associative algebras such as the octonions. Alternative algebras are so named because they are the algebras for which...
    7 KB (1,064 words) - 20:49, 14 June 2025
  • to construct some of the other lattices of rank 24. If L is the set of octonions with coordinates on the E 8 {\displaystyle E_{8}} lattice, then the Leech...
    28 KB (4,307 words) - 20:10, 30 June 2025
  • defined the same way, but using split octonions instead of octonions. The final is constructed from the non-split octonions using a different standard involution...
    7 KB (717 words) - 05:52, 2 December 2024
  • Thumbnail for SO(8)
    SO(8) (category Octonions)
    bimultiplications by unit octonions (a bimultiplication being the composition of a left-multiplication and a right-multiplication by the same octonion and is unambiguously...
    7 KB (1,100 words) - 11:48, 31 May 2025
  • Furthermore, in contrast to the octonions, both algebras do not even have the property of being alternative. Whereas octonion unit multiplication patterns...
    40 KB (1,499 words) - 12:44, 18 May 2025
  • Thumbnail for History of quaternions
    nevertheless, octonions are known by the name Cayley gave them – or as Cayley numbers. The major deduction from the existence of octonions was the eight...
    20 KB (2,406 words) - 23:57, 26 June 2025
  • systems called quaternions, tessarines, coquaternions, biquaternions, and octonions became established concepts in mathematical literature, extending the...
    27 KB (3,215 words) - 12:21, 1 July 2025
  • Thumbnail for F4 (mathematics)
    Y, Z are octonion valued. Another way of writing these invariants is as (combinations of) Tr(M), Tr(M2) and Tr(M3) of the hermitian octonion matrix: M...
    8 KB (983 words) - 13:15, 27 September 2024
  • Eight-dimensional space (category Octonions)
    associated lattice. The kissing number in eight dimensions is 240. The octonions are a normed division algebra over the real numbers, the largest such...
    7 KB (718 words) - 02:17, 21 May 2025
  • Moufang loop. The nonzero octonions form a nonassociative Moufang loop under octonion multiplication. The subset of unit norm octonions (forming a 7-sphere...
    11 KB (1,788 words) - 06:32, 4 February 2025
  • as a 2‑tuple of reals, a quaternion can be represented as a 4‑tuple, an octonion can be represented as an 8‑tuple, and a sedenion can be represented as...
    16 KB (2,224 words) - 06:56, 3 May 2025
  • spaces have a number of special properties, many of them related to the octonions. An especially distinctive property is that a cross product can be defined...
    5 KB (499 words) - 00:42, 11 December 2024
  • not be associative. Examples include Lie algebras, Jordan algebras, the octonions, and three-dimensional Euclidean space equipped with the cross product...
    25 KB (3,005 words) - 20:16, 18 February 2025
  • Thumbnail for Multiplication table
    that of the quaternion multiplication table. For further examples, see Octonion § Multiplication, Sedenion § Multiplication, and Trigintaduonion § Multiplication...
    29 KB (1,430 words) - 19:31, 13 April 2025
  • PSL(2,7) (category Octonions)
    Fano plane can be used to describe multiplication of octonions, so G acts on the set of octonion multiplication tables. The Klein quartic is the projective...
    11 KB (1,570 words) - 08:32, 10 October 2024
  • Thumbnail for Dimension
    Hamilton's discovery of the quaternions and John T. Graves' discovery of the octonions in 1843 marked the beginning of higher-dimensional geometry. The rest...
    35 KB (3,933 words) - 07:35, 25 June 2025