Abstract
Long-recognized curvature inconsistencies forS≥3/2 spinor equations are shown to result from an inconsistent transport law for the Infeld-Van der Waerden σ-symbols implied by conventional spinor derivatives. A curvature-free connection for the σ-symbols and a simple spinor form of the Levi-Civita connection for spinor fields yields consistent equations for any spin with no curvature restrictions.
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Urani, J.R., Kutchko, F.J. Consistent spinor equations. Lett Math Phys 13, 41–44 (1987). https://doi.org/10.1007/BF00570766
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DOI: https://doi.org/10.1007/BF00570766