Mathematics – Rings and Algebras
Scientific paper
2006-05-10
Trita-MAT. MA, ISSN 1401-2278; 2006:01
Mathematics
Rings and Algebras
M.Sc. Thesis (January 2006), 68 pages. Department of Mathematics, Royal Institute of Technology, Sweden
Scientific paper
In this Master of Science Thesis I introduce geometric algebra both from the traditional geometric setting of vector spaces, and also from a more combinatorial view which simplifies common relations and operations. This view enables us to define Clifford algebras with scalars in arbitrary rings and provides new suggestions for an infinite-dimensional approach. Furthermore, I give a quick review of classic results regarding geometric algebras, such as their classification in terms of matrix algebras, the connection to orthogonal and Spin groups, and their representation theory. A number of lower-dimensional examples are worked out in a systematic way using so called norm functions, while general applications of representation theory include normed division algebras and vector fields on spheres. I also consider examples in relativistic physics, where reformulations in terms of geometric algebra give rise to both computational and conceptual simplifications.
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