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We define a spinor Abelian variety $S_{\Delta}$ to be a complex Abelian variety whose tangent space at the origin is a space of spinors for a suitable complex Clifford algebra $\mathbb{C}_{q}(V)$. We examine intrinsic properties of such…

Algebraic Geometry · Mathematics 2025-10-24 Ivona Grzegorczyk , Ricardo Suarez

Quaternionic and octonionic realizations of Clifford algebras and spinors are classified and explicitly constructed in terms of recursive formulas. The most general free dynamics in arbitrary signature space-times for both quaternionic and…

High Energy Physics - Theory · Physics 2009-11-10 H. L. Carrion , M. Rojas , F. Toppan

The modern algebra concepts are used to construct tables of algebraic spinors related to Clifford algebra multivectors with real and complex coefficients. The following data computed by Mathematica are presented in form of tables for…

Mathematical Physics · Physics 2024-12-20 A. Acus , A. Dargys

Classification of quantum spinor fields according to quantum bilinear covariants is introduced in a context of quantum Clifford algebras on Minkowski spacetime. Once the bilinear covariants are expressed in terms of algebraic spinor fields,…

Mathematical Physics · Physics 2014-10-03 Rafal Ablamowicz , Icaro Gonçalves , Roldao da Rocha

This paper is intended to describe twistors via the paravector model of Clifford algebras and to relate such description to conformal maps in the Clifford algebra over R(4,1), besides pointing out some applications of the pure spinor…

Mathematical Physics · Physics 2007-05-23 Roldao da Rocha , Jayme Vaz

The 2(2s+1)-component relativistic basis spinors for the arbitrary spin particles are established in position, momentum and four-dimensional spaces, where s=0,1 / 2,1, 3 / 2, 2, ... . These spinors for integral- and half-integral spins are…

General Physics · Physics 2012-06-19 I. I. Guseinov

Apollonian circle packings arise by repeatedly filling the interstices between mutually tangent circles with further tangent circles. In Euclidean space it is possible for every circle in such a packing to have integer radius of curvature,…

Number Theory · Mathematics 2008-12-08 Nicholas Eriksson , Jeffrey C. Lagarias

Real Clifford algebras for arbitrary number of space and time dimensions as well as their representations in terms of spinors are reviewed and discussed. The Clifford algebras are classified in terms of isomorphic matrix algebras of real,…

High Energy Physics - Theory · Physics 2019-08-07 Stefan Floerchinger

We give an explicit bijective correspondence between between nonzero pairs of complex numbers, which we regard as spinors or spin vectors, and horospheres in 3-dimensional hyperbolic space decorated with certain spinorial directions. This…

Geometric Topology · Mathematics 2025-03-04 Daniel V. Mathews

We define a two-dimensional space called the spinor-plane, where all spinors that can be decomposed in terms of Restricted Inomata-McKinley (RIM) spinors reside, and describe some of its properties. Some interesting results concerning the…

Mathematical Physics · Physics 2019-04-09 D. Beghetto , R. J. Bueno Rogerio , C. H. Coronado Villalobos

This paper gives $n$-dimensional analogues of the Apollonian circle packings in parts I and II. We work in the space $\sM_{\dd}^n$ of all $n$-dimensional oriented Descartes configurations parametrized in a coordinate system,…

Metric Geometry · Mathematics 2007-05-23 R. L. Graham , J. C. Lagarias , C. L. Mallows , A. R. Wilks , C. H. Yan

Spinor structure is understood as a totality of tensor products of biquaternion algebras, and the each tensor product is associated with an irreducible representation of the Lorentz group. A so-defined algebraic structure allows one to…

Mathematical Physics · Physics 2015-01-05 V. V. Varlamov

In this paper we present a space-time calculus for symmetric spinors, including a product with a number of index contractions followed by symmetrization. As all operations stay within the class of symmetric spinors, no involved index…

General Relativity and Quantum Cosmology · Physics 2023-03-29 Steffen Aksteiner , Thomas Bäckdahl

The essentially unique torsionful version of the classical two-component spinor formalisms of Infeld and van der Waerden is presented. All the metric spinors and connecting objects that arise here are formally the same as the ones borne by…

Mathematical Physics · Physics 2015-01-26 J. G. Cardoso

This paper relates skein spaces based on the Kauffman bracket and spin structures. A spin structure on an oriented 3-manifold provides an isomorphism between the skein space for parameter A and the skein space for parameter -A. There is an…

General Relativity and Quantum Cosmology · Physics 2009-10-28 John W. Barrett

The questions of the existence, basic algebraic properties and relevant constraints that yield a viable physical interpretation of world spinors are discussed in details. Relations between spinorial wave equations that transform…

High Energy Physics - Theory · Physics 2007-05-23 Djordje Sijacki

In this short pedagogical presentation, we introduce the spin groups and the spinors from the point of view of group theory. We also present, independently, the construction of the low dimensional Clifford algebras. And we establish the…

General Relativity and Quantum Cosmology · Physics 2010-07-19 Marc Lachieze-Rey

The E. Cartan's equations defining "simple" spinors (renamed "pure" by C. Chevalley) are interpreted as equations of motions for fermion multiplets in momentum spaces which, in a constructive approach based bilinearly on those spinors,…

High Energy Physics - Theory · Physics 2008-11-26 P. Budinich

While general relativity provides a complete geometric theory of gravity, it fails to explain the other three forces of nature, i.e., electromagnetism and weak and strong interactions. We require the quantum field theory (QFT) to explain…

General Relativity and Quantum Cosmology · Physics 2023-04-11 Santanu Das

We introduce a notion of twisted pure spinor in order to characterize, in a unified way, all the special Riemannian holonomy groups just as a classical pure spinor characterizes the special K\"ahler holonomy. Motivated by certain curvature…

Differential Geometry · Mathematics 2019-09-24 Rafael Herrera , Noemi Santana