  Massless scalar and vector fields are coupled to Lyra geometry by means of
Duffin-Kemmer-Petiau (DKP) theory. Using Schwinger Variational Principle,
equations of motion, conservation laws and gauge symmetry are implemented. We
find that the scalar field couples to the anholonomic part of the torsion
tensor, and the gauge symmetry of the electromagnetic field is not breaking by
the coupling with torsion.
