<div id="comment:0"></div> Add projective space and charts in the manifold catalog. See #31249. CC: @tscrim @trevorkarn @mjungmath Component: **manifolds** Keywords: **projective, catalog** Author: **Trevor K. Karn** Branch: **[`51f9419`](https://github.com/sagemath/sagetrac-mirror/commit/51f9419e13686805845b04d88b0a071bf32a8f08)** Reviewer: **Travis Scrimshaw, Eric Gourgoulhon** _Issue created by migration from https://trac.sagemath.org/ticket/33221_