• 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
  • 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
  • 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
  • Dickson. The algebras produced by this process are known as Cayley–Dickson algebras, for example complex numbers, quaternions, and octonions. These examples...
    21 KB (2,554 words) - 06:23, 7 May 2025
  • called quaternion algebras.  They are associative but not commutative. Composition algebras of dimension 8 are called octonion algebras.  They are neither...
    11 KB (1,319 words) - 14:21, 10 October 2024
  • in the algebra. Every associative algebra is obviously alternative, but so too are some strictly non-associative algebras such as the octonions. Alternative...
    7 KB (1,066 words) - 14:03, 4 June 2025
  • Thumbnail for G2 (mathematics)
    G2 (mathematics) (category Octonions)
    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
  • Bioctonion (category Octonions)
    trivial involution, and quadratic form z2. The algebra of bioctonions is an example of an octonion algebra. For any pair of bioctonions y and z, N ( y z...
    3 KB (474 words) - 15:31, 27 July 2023
  • In algebra, an Okubo algebra or pseudo-octonion algebra is an 8-dimensional non-associative algebra similar to the one studied by Susumu Okubo. Okubo algebras...
    7 KB (830 words) - 08:12, 4 April 2025
  • rings. An algebra is unital or unitary if it has an identity element e with ex = x = xe for all x in the algebra. For example, the octonions are unital...
    25 KB (3,005 words) - 20:16, 18 February 2025
  • of B. Composition algebra Cyclic algebra Octonion algebra Hurwitz quaternion order Hurwitz quaternion See Pierce. Associative algebras. Springer. Lemma...
    11 KB (1,579 words) - 21:29, 14 May 2025
  • non-zero part of the algebra, then the algebra must be isomorphic to the real numbers, the complex numbers, the quaternions, or the octonions, and that there...
    28 KB (3,682 words) - 00:14, 19 May 2025
  • algebra Kac–Moody algebra Kleene algebra Leibniz algebra Lie algebra Lie superalgebra Malcev algebra Matrix algebra Non-associative algebra Octonion algebra...
    2 KB (226 words) - 14:20, 21 November 2024
  • octonions instead of octonions. The final is constructed from the non-split octonions using a different standard involution. Over any algebraically closed...
    7 KB (717 words) - 05:52, 2 December 2024
  • Thumbnail for Square (algebra)
    composition. The procedure was introduced by L. E. Dickson to produce the octonions out of quaternions by doubling. The doubling method was formalized by...
    15 KB (1,990 words) - 10:11, 15 February 2025
  • Octonions Lie algebras Jordan algebras Alternative algebras Flexible algebras Power-associative algebras The definition of an associative K-algebra with...
    22 KB (3,122 words) - 20:22, 31 March 2025
  • {H} } , and the octonions O {\displaystyle \mathbb {O} } , and the Frobenius theorem says the only real associative division algebras are R {\displaystyle...
    27 KB (3,215 words) - 22:17, 5 June 2025
  • ISBN 0-387-95447-3. MR 2014924. Okubo, Susumo (1995). Introduction to Octonion and Other Non-Associative Algebras in Physics. Montroll Memorial Lecture Series in Mathematical...
    5 KB (588 words) - 23:09, 1 September 2024
  • Moufang loop (category Non-associative algebra)
    split-octonions. More generally, the set of invertible elements in any octonion algebra over a field F forms a Moufang loop, as does the subset of unit norm...
    11 KB (1,788 words) - 06:32, 4 February 2025
  • mathematics, and more specifically in abstract algebra, a *-algebra (or involutive algebra; read as "star-algebra") is a mathematical structure consisting of...
    11 KB (1,359 words) - 09:14, 24 May 2025
  • Thumbnail for Quaternion
    Quaternion (category Composition algebras)
    extending the quaternions yields the non-associative octonions, which is the last normed division algebra over the real numbers. The next extension gives the...
    96 KB (12,665 words) - 22:22, 26 May 2025
  • matrices Generalized Clifford algebra Geometric algebra Higher-dimensional gamma matrices Hypercomplex number Octonion Paravector Quaternion Spin group...
    65 KB (9,287 words) - 07:33, 12 May 2025
  • Thumbnail for Abstract algebra
    In mathematics, more specifically algebra, abstract algebra or modern algebra is the study of algebraic structures, which are sets with specific operations...
    33 KB (4,336 words) - 16:06, 7 June 2025
  • if xyz = 1 then a(x)b(y)c(z) = 1. For alternative division algebras such as the octonions the two definitions of isotopy are equivalent, but in general...
    4 KB (547 words) - 06:30, 27 May 2025
  • exceptional Jordan algebra (it is exceptional because the octonions are not associative). This was the first example of an Albert algebra. Its automorphism...
    19 KB (2,495 words) - 22:33, 8 March 2025
  • Thumbnail for F4 (mathematics)
    F4 (mathematics) (category Algebraic groups)
    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
  • ISBN 0-8176-3345-6, MR 0885089 Okubo, Susumu (1995), Introduction to octonion and other non-associative algebras in physics, Montroll Memorial Lecture Series in Mathematical...
    2 KB (198 words) - 13:45, 10 November 2024
  • Thumbnail for Symmetric space
    Riemannian geometry, leading to consequences in the theory of holonomy; or algebraically through Lie theory, which allowed Cartan to give a complete classification...
    45 KB (4,599 words) - 00:15, 26 May 2025
  • Thumbnail for Reductive group
    Dickson. For example, the group G2 is the automorphism group of an octonion algebra over k. By contrast, the Chevalley groups of type F4, E7, E8 over a...
    56 KB (8,018 words) - 09:30, 15 April 2025
  • Seven-dimensional cross product (category Octonions)
    Sbitneva; I. P. Shestakov (2006). "§17.2 Octonion algebra and its regular bimodule representation". Non-associative algebra and its applications. CRC Press. p...
    33 KB (4,787 words) - 08:20, 27 January 2025