Torsion and Chern-Simons gravity in 4D space-times from a Geometrodynamical four-form

Patrick Das Gupta

The space-time geometry in any inertial frame is described by the line-element $d{s}^2={\eta }_{\mu \nu }d{x}^{\mu }d{x}^{\nu }$. Now, not only the Minkowski metric ${\eta }_{\mu \nu }$ is invariant under proper Loren…