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Spinors and Octonions

Luis J. Boya

math-pharXiv:math-ph/0409077

Abstract

Octonions are introduced through some spin representations. The groups G2, F4 and the E series appear in a natural manner; one way to understand octonions is as the "second coming" of the reals, but with the spinors instead of vectors. Some physical applications in M- and F-theory as putative "theories of everything" are suggested.

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