xConf
A Mathematica package for conformal (Weyl) transformations in cosmological perturbation theory
General description
xConf (2025-2026) is a small package for Mathematica in which tools are provided to formally compute Weyl rescalings, often called improperly conformal transformations. It is developed by Cyril Pitrou and Guillaume Faye. It is based on the xAct distribution for efficient tensor manipulations.
Downloading and installing
You first need to download and
install xAct.
Then you can download the tarball of xConf's last released
version (currently 0.0.1).
See the installation notes
in order to install it correctly in your local Mathematica distribution.
Documentation
Once installed, some documentation is available in the Documentation subfolder, and examples are found in the Examples subfolder. If you wish to have a glance at the package, you can download the pdf dump of the documentation.
The details of the algorithm will be available in an arXiv document. Please cite it if you use it.
Gallery
License
The programs on this page are distributed as free software under the GNU General Public License. They are distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.