Abstract
A “mental” multiplication scheme is given for the super hypercomplex numbers, which extend the 16-element Dirac algebra to 32 elements by appending the complex octonions. This extends the 5-vectors of relativity to 9-vectors. The problems with nonassociativity, for the group structures and wave equation covariance, are explored.
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Edmonds, J.D. Nine-vectors, complex octonion/quaternion hypercomplex numbers, lie groups, and the ‘real’ world. Found Phys 8, 303–311 (1978). https://doi.org/10.1007/BF00715215
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DOI: https://doi.org/10.1007/BF00715215