For my thesis, I have to implement the CCZ4 formalism into an existing code (I tried to type the evolution equations here but does not seem to work).
However, I can't seem to come up with a scheme to solve these equations. For instance, here, the authors give an explicit scheme on how to solve the ADM equations (see page eight). I am looking for something similar. I tried something similar but that did not get me far. Furthermore, I am aware of the codes such as GRChombo (see here) that are able to solve these equations but I can't find anywhere in what order they solve these equations. I tried looking at the source code of GRChombo but I could not anything useful that would solve my problem (I am not familiar with C++)
Hence, I am looking for references or ideas on how I could solve my problem.
Thanks in advance!
