Towards differential elimination of spinor field from spinor electrodynamics
arXiv:1803.08800
Abstract
A system of PDEs for the electromagnetic field and one real component of the spinor field is generally equivalent to spinor electrodynamics. There are reasons to believe that the component can be differentially eliminated from the system. A Lagrangian depending on the electromagnetic field and one real component of the spinor field generally describes the same physics as spinor electrodynamics.
Typo corrected