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Nonassociative algebra over the real numbers
In mathematics, the split-octonions are an 8-dimensional nonassociative algebra over the real numbers. Unlike the standard octonions, they contain non-zero
Split-octonion
example of an octonion algebra is the classical octonions, which are an octonion algebra over R, the field of real numbers. The split-octonions also form
Octonion_algebra
Hypercomplex number system
mathematics, the octonions are a normed division algebra over the real numbers, a kind of hypercomplex number system. The octonions are usually represented
Octonion
Method for producing composition algebras
Cayley–Dickson algebras, for example complex numbers, quaternions, and octonions. These examples are useful composition algebras frequently applied in
Cayley–Dickson_construction
Reals with an extra square root of +1 adjoined
origin are proportional to j exp(aj). In 1933 Max Zorn was using the split-octonions and noted the composition algebra property. He realized that the Cayley–Dickson
Split-complex_number
Element of a unital algebra over the field of real numbers
systems called quaternions, tessarines, coquaternions, biquaternions, and octonions became established concepts in mathematical literature, extending the
Hypercomplex_number
Type of algebras, possibly non associative
quadratic form x2 − y2, quaternions and split-quaternions, octonions and split-octonions. Every composition algebra has an associated bilinear form B(x
Composition_algebra
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
Albert_algebra
Vector on which a quadratic form is zero
hi is a null vector. The real subalgebras, split complex numbers, split quaternions, and split-octonions, with their null cones representing the light
Null_vector
Four-dimensional number system
largest ring). Further extending the quaternions yields the non-associative octonions, which is the last normed division algebra over the real numbers. The
Quaternion
Algebraic structure
Moufang loop. The nonzero octonions form a nonassociative Moufang loop under octonion multiplication. The subset of unit norm octonions (forming a 7-sphere
Moufang_loop
Simple Lie group; the automorphism group of the 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
G2_(mathematics)
Relation between Lie algebras depicted as a square
exceptional Lie groups all exist because of the octonions": G2 itself is the automorphism group of the octonions (also, it is in many ways like a classical
Freudenthal_magic_square
Four-dimensional associative algebra over the reals
1988) Dual quaternions Pauli matrices Quaternion algebra Split-biquaternions Split-octonions Karzel, Helmut & Günter Kist (1985) "Kinematic Algebras and
Split-quaternion
Element of an algebra using quaternions and split-complex numbers
the direct sum of two quaternion algebras – van der Waerden 1985 Split-octonions Clifford, W. K. (1873). "Preliminary Sketch of Biquaternions". In Tucker
Split-biquaternion
Generalization of affine connections
5-manifolds: Here G = Aut(Os) is the automorphism group of the algebra Os of split octonions, a closed subgroup of SO(3,4), and P is the intersection of G with
Cartan_connection
Element in a ring whose some power is 0
include split-quaternions (coquaternions), split-octonions, biquaternions C ⊗ H {\displaystyle \mathbb {C} \otimes \mathbb {H} } , and complex octonions C ⊗
Nilpotent
German mathematician (1906–1993)
dem Mathematischen Seminar der Universität Hamburg. Zorn showed that split-octonions could be represented by a mixed-style of matrices called Zorn's vector-matrix
Max_August_Zorn
field. Image: Description: Algebraic group: the automorphism group of a split octonion algebra. Special fields: This type exists over any field. (Tits 1966)
List of irreducible Tits indices
List_of_irreducible_Tits_indices
Hypercomplex number system
sedenions are obtained by applying the Cayley–Dickson construction to the octonions, which can be mathematically expressed as S = C D ( O , 1 ) {\displaystyle
Sedenion
Mathematics book
The Geometry of the Octonions is a mathematics book on the octonions, a system of numbers generalizing the complex numbers and quaternions, presenting
The_Geometry_of_the_Octonions
Setting of relativistic physics in geometric algebra
location (link) Lasenby, A. (2022), "Some recent results for SU(3) and Octonions within the Geometric Algebra approach to the fundamental forces of nature"
Spacetime_algebra
Comprehensive physical model
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
Grand_Unified_Theory
type G2(q) is usually constructed as the automorphism groups of the split octonions. Hence, it has a natural representation as a subgroup of the 7-dimensional
List of transitive finite linear groups
List_of_transitive_finite_linear_groups
Generalization of quaternions to other fields
ramifies is called the discriminant of B. Composition algebra Cyclic algebra Octonion algebra Hurwitz quaternion order Hurwitz quaternion See Milies & Sehgal
Quaternion_algebra
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
History_of_quaternions
52-dimensional exceptional simple Lie group
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
F4_(mathematics)
Concept in mathematics
E. 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
Reductive_group
Mathematical operation on vectors in 3D space
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
Cross_product
Length in a vector space
{C} ,} the quaternions H , {\displaystyle \mathbb {H} ,} and lastly the octonions O , {\displaystyle \mathbb {O} ,} where the dimensions of these spaces
Norm_(mathematics)
Number with a real and an imaginary part
while the octonions (additionally to not being commutative) fail to be associative. The reals, complex numbers, quaternions and octonions are all normed
Complex_number
Functions of complex quaternions
(PDF). p. 3. Conway, John H; Smith, Derek A (2003). On Quaternions and Octonions. Boca Raton, Florida: CRC Press. ISBN 978-1-56881-134-5. Viro, Oleg (2021)
Biquaternion_functions
248-dimensional exceptional simple Lie group
because it can be built using an algebra that is the tensor product of the octonions with themselves, and is also known as a Rosenfeld projective plane, though
E8_(mathematics)
Connected non-abelian Lie group lacking nontrivial connected normal subgroups
O} } stand for the real numbers, complex numbers, quaternions, and octonions. In the symbols such as E6−26 for the exceptional groups, the exponent
Simple_Lie_group
133-dimensional exceptional simple Lie group
using an algebra that is the tensor product of the quaternions and the octonions, and is also known as a Rosenfeld projective plane, though it does not
E7_(mathematics)
Generalized sphere of dimension n (mathematics)
Possesses an almost complex structure coming from the set of pure unit octonions. SO ( 7 ) / SO ( 6 ) = G 2 / SU ( 3 ) {\displaystyle \operatorname
N-sphere
78-dimensional exceptional simple Lie group
2E6: see below. The algebraic group G2 is the automorphism group of the octonions. The exceptional Jordan algebra A {\displaystyle A} of dimension 27, known
E6_(mathematics)
denoted also by GF(q). O {\displaystyle \mathbb {O} } Denotes the set of octonions. It is often denoted also by O . {\displaystyle \mathbf {O} .} S {\displaystyle
Glossary of mathematical symbols
Glossary_of_mathematical_symbols
Vector space equipped with a bilinear product
Euclidean space R3 with multiplication given by the vector cross product Octonions Lie algebras Jordan algebras Alternative algebras Flexible algebras Power-associative
Algebra_over_a_field
Geometric concept of a 2D space with "points at infinity" adjoined
The Cayley plane (OP2), a projective plane over the octonions, is one of these because the octonions do not form a division ring. Conversely, given a planar
Projective_plane
Nonabelian group of order 120
groups, p. 68 Conway, John H.; Smith, Derek A. (2003). On Quaternions and Octonions. Natick, Massachusetts: AK Peters, Ltd. ISBN 1-56881-134-9. Coxeter&Moser:
Binary_icosahedral_group
Theory of strings with supersymmetry
may involve the noncommutative geometry based on the quaternions and octonions, respectively. From the above discussion, it can be seen that physicists
Superstring_theory
Polytope in 8-dimensional geometry
polytope can also be obtained by taking the 240 integral octonions of norm 1. Because the octonions are a nonassociative normed division algebra, these 240
4_21_polytope
Eight-dimensional algebra over the real numbers
dual quaternion algebra. However, his terminology of "octonions" did not stick as today's octonions are another algebra. In 1891 Eduard Study realized that
Dual_quaternion
Algebra based on a vector space with a quadratic form
Geometric algebra Higher-dimensional gamma matrices Hypercomplex number Octonion Paravector Quaternion Spin group Spin structure Spinor Spinor bundle Also
Clifford_algebra
Algebraic structure with addition, multiplication, and division
non-commutative). This result is known as the Frobenius theorem. The octonions O, for which multiplication is neither commutative nor associative, is
Field_(mathematics)
Mathematical structure in abstract algebra
Eric W. (2015). "C-Star Algebra". Wolfram MathWorld. Baez, John (2015). "Octonions". Department of Mathematics. University of California, Riverside. Archived
*-algebra
Nonabelian group in algebraic group theory
S2CID 119272452. Conway, John H.; Smith, Derek A. (2003). On Quaternions and Octonions. Natick, Massachusetts: AK Peters, Ltd. ISBN 1-56881-134-9. Coxeter, H
Binary_tetrahedral_group
Typeface style used in mathematics
include zero. O {\displaystyle \mathbb {O} } U+1D546 𝕆 Represents the octonions. P {\displaystyle \mathbb {P} } U+2119 ℙ Represents projective space,
Blackboard_bold
Branch of mathematics
shortly. In 1844, Hamilton presented biquaternions, Cayley introduced octonions, and Grassman introduced exterior algebras. James Cockle presented tessarines
Abstract_algebra
ISBN 0-387-09212-9. Conway, John H.; Smith, Derek A. (2003). On Quaternions and Octonions. Natick, Massachusetts: AK Peters, Ltd. ISBN 1-56881-134-9. Coxeter&Moser:
Binary_octahedral_group
(pseudo-)Riemannian manifold whose geodesics are reversible
4 ) {\displaystyle \mathrm {SO} (4)\,} 8 2 Space of subalgebras of the octonion algebra O {\displaystyle \mathbb {O} } which are isomorphic to the quaternion
Symmetric_space
Square matrices satisfy their characteristic equation
that the theorem holds. There is no such matrix representation for the octonions, since the multiplication operation is not associative in this case. However
Cayley–Hamilton_theorem
Special orthogonal group
to four dimensions. J. H. Conway and D. A. Smith: On Quaternions and Octonions: Their Geometry, Arithmetic, and Symmetry. A. K. Peters, 2003. Hathaway
Rotations in 4-dimensional Euclidean space
Rotations_in_4-dimensional_Euclidean_space
How spheres of various dimensions can wrap around each other
or octonions instead of complex numbers. Here, too, π3(S7) and π7(S15) are zero. Thus the long exact sequences again break into families of split short
Homotopy_groups_of_spheres
Method for bounding the errors of numerical computations
manner, to other multidimensional number systems such as quaternions and octonions, but with the expense that we have to sacrifice other useful properties
Interval_arithmetic
Type of polygon
methods known before. The other is that the concept is an analogue to the octonion algebras, and quadratic Jordan division algebras of degree 3, that give
Moufang_polygon
Relativistic correction
ISBN 978-3-7643-7790-8. Conway, John H; Smith, Derek A (2003). On Quaternions and Octonions. Boca Raton, Florida: CRC Press. ISBN 978-1-56881-134-5. Girard, Patrick
Thomas_precession
SPLIT OCTONION
SPLIT OCTONION
Boy/Male
Tamil
Inside viewer, Spilt second
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Tamil, Telugu
Momentary; Lord Rama's Ancestor; Spilt-second; Lord Vishnu
Surname or Lastname
English
English : habitational name from a place in Lancashire, near Rishton, recorded in 1246 as Kunteclive, from Old English cunte ‘cunt’ + clif ‘slope’, i.e. ‘slope with a slit or crack in it’.
Girl/Female
American, Christian, Hebrew, Indian
Narrow Split of Land
Boy/Male
American, British, English
From the Split Meadow
Surname or Lastname
English
English : habitational name from any of the numerous places so called, which split more or less evenly into two groups with different etymologies. One set (with examples in Berkshire, Dorset, Gloucestershire, Hampshire, Herefordshire, Somerset, and Wiltshire) is named from the Old English weak dative hēan (originally used after a preposition and article) of hēah ‘high’ + Old English tūn ‘enclosure’, ‘settlement’. The other (with examples in Cambridgeshire, Dorset, Gloucestershire, Herefordshire, Northamptonshire, Shropshire, Somerset, Suffolk, and Wiltshire) has Old English hīwan ‘household’, ‘monastery’. Compare Hine as the first element.
Boy/Male
Arabic, Muslim
Strong; Solid; Firm; Sharp
Boy/Male
Muslim/Islamic
Split Cleavage
Girl/Female
Hindu, Indian
Momentary; Split Second
Girl/Female
Hindu, Indian, Telugu
Motherly Love; Energetic Sprit
Surname or Lastname
English and French
English and French : metonymic occupational name for a turnspit, i.e. a servant who turned the spit, from Old French haste ‘(roasting) spit’.A bearer of the name Haste from Paris is documented in Montreal in 1662.
Boy/Male
Arabic, Muslim, Sindhi
Split
Boy/Male
Hindu
Inside viewer, Spilt second
Boy/Male
English
From the split meadow.
Boy/Male
Hindu
Inside viewer, Spilt second
Boy/Male
Muslim
Strong, Solid, Firm, Sharp
Boy/Male
Muslim
Split, Cleavage
Boy/Male
Gujarati, Hindu, Indian
One who Lives Life Long; Gains Victory Within Splits
Boy/Male
Tamil
Inside viewer, Spilt second
Surname or Lastname
English
English : from Middle English clevere ‘one who cleaves’ (a derivative of Old English clēofan ‘to split’), hence an occupational name for someone who split wood into planks using a wedge rather than a saw, or possibly for a butcher.English : topographic name from Middle English cleve ‘bank’, ‘slope’ (from the dative of Old English clif) + the suffix -er, denoting an inhabitant.Americanized spelling of German Kliewer or Klüver (see Kluver).
SPLIT OCTONION
SPLIT OCTONION
Surname or Lastname
English and Dutch
English and Dutch : from the personal name (Greek Nikolaos, from nikÄn ‘to conquer’ + laos ‘people’). Forms with -ch- are due to hypercorrection (compare Anthony). The name in various vernacular forms was popular among Christians throughout Europe in the Middle Ages, largely as a result of the fame of a 4th-century Lycian bishop, about whom a large number of legends grew up, and who was venerated in the Orthodox Church as well as the Catholic. In English-speaking countries, this surname is also found as an Americanized form of various Greek surnames such as Papanikolaou ‘(son of) Nicholas the priest’ and patronymics such as Nikolopoulos.The colonial official and revolutionary patriot Robert Carter Nicholas was from a prominent VA family on both sides. His father was a British navy surgeon who emigrated in about 1700 from Lancashire, England, to Williamsburg, VA.
Boy/Male
Tamil
Matchless
Boy/Male
Muslim/Islamic
Ibn Abi Muslim al-Hashami had this name
Boy/Male
Muslim/Islamic
Habitation
Girl/Female
Australian
Best at Being the Worst; Best
Girl/Female
Hindu, Indian, Traditional
Acting According to Dharma
Male
French
French form of Latin Cupido, CUPIDON means "desire."
Girl/Female
American, Australian, Christian
A Combination of Tammy and Pamela
Girl/Female
Arabic, Muslim, Sindhi
Judicious; Wise
Girl/Female
Indian, Telugu
Unity
SPLIT OCTONION
SPLIT OCTONION
SPLIT OCTONION
SPLIT OCTONION
SPLIT OCTONION
imp. & p. p.
of Spit
imp. & p. p.
of Split
v. i.
To part asunder; to be rent; to burst; as, vessels split by the freezing of water in them.
v. i.
To attend to a spit; to use a spit.
n.
To cut lengthwise; to cut into long pieces or strips; as, to slit iron bars into nail rods; to slit leather into straps.
v. t.
A piece split off; a splinter.
a.
Divided; split; partly divided or split.
n.
To thrust a spit through; to fix upon a spit; hence, to thrust through or impale; as, to spit a loin of veal.
v. t.
A disease affecting the splint bones, as a callosity or hard excrescence.
v. t.
To divide or separate into components; -- often used with up; as, to split up sugar into alcohol and carbonic acid.
v. t.
One of the small plates of metal used in making splint armor. See Splint armor, below.
v. t.
To divide lengthwise; to separate from end to end, esp. by force; to divide in the direction of the grain layers; to rive; to cleave; as, to split a piece of timber or a board; to split a gem; to split a sheepskin.
imp. & p. p.
of Slit
n.
the substitution of more than one share of a corporation's stock for one share. The market price of the stock usually drops in proportion to the increase in outstanding shares of stock. The split may be in any ratio, as a two-for-one split; a three-for-two split.
v. t.
To split into splints, or thin, slender pieces; to splinter; to shiver.
n.
A piece that is split off, or made thin, by splitting; a splinter; a fragment.
v. t.
Splint, or splent, coal. See Splent coal, under Splent.
v. t.
To fasten or confine with splints, as a broken limb. See Splint, n., 2.
v. t.
A splint bone.
n.
A long cut; a narrow opening; as, a slit in the ear.