dividing my week into MWFSat for review math topics in Lie groups, its closely allied theoretical physics subject quantum field theory and TThSun for refresh topics in electronics engineering and general relativity (gravity) along with some refresher topics in differential geometry loosely touching on differential forms... since today is sunday i can deal with reviewing my studies on blackholes
https://foxtrotpaparomeo.wordpress.com/2022/10/28/26062022-out-going-and-in-going-klein-gordon-waves-very-near-the-blackhole-event-horizons/