Abstract
Completely different notions are now expounded: first comultiplications and interior multiplications; then exponentials (defined without exponential series); finally deformations of Clifford algebras, which need both exponentials and interior products. Exterior algebras play an important role, because with a weak additional hypothesis (the existence of scalar products) we shall prove that Clifford algebras are isomorphic to them as K-modules (and even as comodules). The first two sections of Chapter 3 are sufficient prerequisites for almost all this chapter.
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© 2008 Birkhäuser Verlag AG
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(2008). Comultiplications. Exponentials. Deformations. In: Quadratic Mappings and Clifford Algebras. Birkhäuser Basel. https://doi.org/10.1007/978-3-7643-8606-1_4
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DOI: https://doi.org/10.1007/978-3-7643-8606-1_4
Publisher Name: Birkhäuser Basel
Print ISBN: 978-3-7643-8605-4
Online ISBN: 978-3-7643-8606-1
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