GR Alternativies

Posts concerning geometric theories of gravitation other than Einstein's general theory of relativity. These includes the likes of $f(R)$ gravity and Newton-Cartan theory.

A quick introduction of Newton-Cartan theory, which is a sort of Newtonian limit of general relativity from a geometric point of view.
Last updated on 32 min read expository

A quick summary of the traceless version of general relativity.
Last updated on 8 min read mathematical diversions