# Cronstrom gauge

A connection A is in the Cronstrom gauge around the origin if it has vanishing spacetime-radial component:

${\displaystyle x^{\alpha }A_{\alpha }=0.}$

More generally, a connection is in the Cronstrom gauge around a point y in spacetime if

${\displaystyle (x^{\alpha }-y^{\alpha })A_{\alpha }=0.}$