๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Clifford algebras obtained by twisting of group algebras

โœ Scribed by Helena Albuquerque; Shahn Majid


Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
144 KB
Volume
171
Category
Article
ISSN
0022-4049

No coin nor oath required. For personal study only.

โœฆ Synopsis


We investigate the construction and properties of Cli ord algebras by a similar manner as our previous construction of the octonions, namely as a twisting of group algebras of Z n 2 by a cocycle. Our approach is more general than the usual one based on generators and relations. We obtain, in particular, the periodicity properties and a new construction of spinors in terms of left and right multiplication in the Cli ord algebra.


๐Ÿ“œ SIMILAR VOLUMES


Twisted group algebras I
โœ C. M. Edwards; J. T. Lewis ๐Ÿ“‚ Article ๐Ÿ“… 1969 ๐Ÿ› Springer ๐ŸŒ English โš– 741 KB
Twisted group algebras II
โœ C. M. Edwards; J. T. Lewis ๐Ÿ“‚ Article ๐Ÿ“… 1969 ๐Ÿ› Springer ๐ŸŒ English โš– 669 KB
On Units of Twisted Group Algebras
โœ Chia-Hsin Liu ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 110 KB

We study units of twisted group algebras. Let G be a finite group and K be a field of characteristic p > 0. Assume that K is not algebraic over a finite field. We determine when units of K t G do not contain any nonabelian free subgroup. We also discuss what will happen when G is locally finite. For

Idempotent structure of Clifford algebra
โœ Pertti Lounesto; G. P. Wene ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 387 KB

Spinor spaces can be represented as minimal left ideals of Clifford algebras and they are generated by primitive idempotents. Primitive idempotents of the Clifford algebras Rp.q are shown to be products of mutually nonannihilating commuting idempotent factors I(1 +cT), where the k = q -rq\_p basis e