Results 11 to 20 of about 77,287 (351)

Quaternion Electromagnetism and the Relation with Two-Spinor Formalism

open access: yesUniverse, 2019
By using complex quaternion, which is the system of quaternion representation extended to complex numbers, we show that the laws of electromagnetism can be expressed much more simply and concisely.
In Ki Hong, Choong Sun Kim
doaj   +3 more sources

Field Equations in the Complex Quaternion Spaces [PDF]

open access: yesAdvances in Mathematical Physics, 2014
The paper aims to adopt the complex quaternion and octonion to formulate the field equations for electromagnetic and gravitational fields. Applying the octonionic representation enables one single definition to combine some physics contents of two fields,
Zi-Hua Weng
doaj   +4 more sources

Angular momentum and torque described with the complex octonion

open access: yesAIP Advances, 2014
The paper aims to adopt the complex octonion to formulate the angular momentum, torque, and force etc in the electromagnetic and gravitational fields.
Zi-Hua Weng
doaj   +3 more sources

Consimilarity and quaternion matrix equations AX −^X B = C, X − A^X B = C

open access: yesSpecial Matrices, 2014
L. Huang [Consimilarity of quaternion matrices and complex matrices, Linear Algebra Appl. 331(2001) 21–30] gave a canonical form of a quaternion matrix with respect to consimilarity transformationsA ↦ ˜S−1AS in which S is a nonsingular quaternion matrix ...
Klimchuk Tatiana, Sergeichuk Vladimir V.
doaj   +3 more sources

Vectors and Quaternions [PDF]

open access: greenNature, 1893
PROF. MACFARLANE claims that his “fundamental rules for vectors are based on physical considerations, the principal one of which is that the square of a vector is essentially positive.” His proof is virtually this:—The expression for the kinetic energy (½ mv2) is an essentially positive quantity. It contains one factor ½m evidently positive.
A. Lodge
  +12 more sources

On the arithmetic of quaternions [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1940
Gordon Pall
  +4 more sources

The Discussion on Quaternions [PDF]

open access: bronzeNature, 1893
I HAVE followed with much interest the discussion on quaternions which has with more or less intermission been going on in NATURE for a long time.
Robert S. Ball
openalex   +4 more sources

A quaternionic Nullstellensatz [PDF]

open access: yesJournal of Pure and Applied Algebra, 2021
We prove a Nullstellensatz for the ring of polynomial functions in n non-commuting variables over Hamilton's ring of real quaternions. We also characterize the generalized polynomial identities in n variables which hold over the quaternions, and more generally, over any division algebra.
Elad Paran, Gil Alon
openaire   +3 more sources

Quaternionic monopoles [PDF]

open access: yesCommunications in Mathematical Physics, 1996
We present the simplest non-abelian version of Seiberg-Witten theory: Quaternionic monopoles. These monopoles are associated with Spin^h(4)-structures on 4-manifolds and form finite-dimensional moduli spaces. On a Kahler surface the quaternionic monopole equations decouple and lead to the projective vortex equation for holomorphic pairs.
Okonek, Christian, Teleman, Andrei
openaire   +3 more sources

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