A Discussion on Dirac Field Theory, No-Go Theorems and Renormalizability
  We study Dirac field equations coupled to electrodynamics with metric and torsion fields: we discuss how special spinorial solutions are incompatible with torsion; eventually these results will be used to sketch a discussion on the problem of renormalizability of point-like particles. 
Luca Fabbri
gr-qc hep-th