Abstract
We discuss the eigenvalue problem for 2×2 and 3×3 octonionic Hermitian matrices. In both cases, we give the general solution for real eigenvalues, and we show there are also solutions with non-real eigenvalues.
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Dray, T., Manogue, C.A. The octonionic eigenvalue problem. AACA 8, 341–364 (1998). https://doi.org/10.1007/BF03043104
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DOI: https://doi.org/10.1007/BF03043104