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arXiv · 1703.01244

Spinors in Spacetime Algebra and Euclidean 4-Space

Garret Sobczyk
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Abstract

This article explores the geometric algebra of Minkowski spacetime, and its relationship to the geometric algebra of Euclidean 4-space. Both of these geometric algebras are algebraically isomorphic to the 2x2 matrix algebra over Hamilton's famous quaternions, and provide a rich geometric framework for various important topics in mathematics and physics, including stereographic projection and spinors, and both spherical and hyperbolic geometry. In addition, by identifying the time-like Minkowski unit vector with the extra dimension of Euclidean 4-space, David Hestenes' Space-Time Algebra of Minkowski spacetime is unified with William Baylis' Algebra of Physical Space.

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Garret Sobczyk. 2017-03-02. Spinors in Spacetime Algebra and Euclidean 4-Space. https://arxiv.org/abs/1703.01244

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