Results 51 to 60 of about 266 (166)

Schur Products

open access: yesScienceOpen Research, 2014
The projective representation of groups was introduced in 1904 by Issai Schur. It differs from the normal representation of groups by a twisting factor, which we call Schur function in this book and which is called sometimes normalized factor set in the ...
Corneliu Constantinescu
doaj   +1 more source

A Note on the Representation of Clifford Algebras

open access: yesJournal of Geometry and Symmetry in Physics, 2020
In this note we construct explicit complex and real faithful matrix representations of the Clifford algebras $\Cl_{p,q}$. The representation is based on Pauli matrices and has an elegant structure similar to the fractal geometry. In the cases $p+q=4m$, the representation is unique in equivalent sense, and the $1+3$ dimensional space-time corresponds to
openaire   +2 more sources

Hecke-Clifford Algebras and Spin Hecke Algebras IV: Odd Double Affine Type

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
We introduce an odd double affine Hecke algebra (DaHa) generated by a classical Weyl group $W$ and two skew-polynomial subalgebras of anticommuting generators.
Ta Khongsap, Weiqiang Wang
doaj   +1 more source

Clifford Algebras and Possible Kinematics

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We review Bacry and Lévy-Leblond's work on possible kinematics as applied to 2-dimensional spacetimes, as well as the nine types of 2-dimensional Cayley-Klein geometries, illustrating how the Cayley-Klein geometries give homogeneous spacetimes for all ...
Alan S. McRae
doaj  

Representation of Integral Formulas for the Extended Quaternions on Clifford Analysis

open access: yesMathematics
This work addresses a significant gap in the existing literature by developing integral representation formulas for extended quaternion-valued functions within the framework of Clifford analysis. While classical Cauchy-type and Borel–Pompeiu formulas are
Ji Eun Kim
doaj   +1 more source

Structure of factor algebras and clifford algebra

open access: yesLinear Algebra and its Applications, 1996
This paper is concerned with the generalized spectral decomposition or eigenprojector form of a linear operator over any field that is a splitting field of its minimal polynomial. A number system is constructed which is isomorphic to the factor ring \(\mathbb{C} [\lambda]/ \langle\psi \rangle\) for an arbitrary polynomial \(\psi\).
openaire   +2 more sources

Square Root of a Multivector of Clifford Algebras in 3D: A Game with Signs

open access: yesMathematics
An algorithm is presented to extract the square root from a multivector (MV) in real Clifford algebras Clp,q, where n=p+q≤3, in radicals. It is shown that in Cl3,0, Cl1,2, and Cl0,3 algebras, there are up to four isolated square roots in a case of the ...
Arturas Acus, Adolfas Dargys
doaj   +1 more source

Clifford Algebras and Liquid Crystalline Fermions

open access: yesPhysical Review X
We show that Clifford algebras provide a natural language to describe the physics of liquid crystal defects in 3D. This framework shows that most of these defects have fermionic nature, as the director field profile on a 2D cross section can ...
N. Johnson   +8 more
doaj   +1 more source

A-Differentiability over Associative Algebras

open access: yesMathematics
The unital associative algebra structure A on Rn allows for defining elementary functions and functions defined by convergent power series. For these, the usual derivative has a simple form even for higher-order derivatives, which allows us to have the A-
Julio Cesar Avila   +2 more
doaj   +1 more source

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