Analytical Funktions, Cauchyscher Integration, Taylor- und Laurentexpansions, Singularity, analytischer Funktionen, Residuenkalkül (no idea what it's called in english).

Fourierseries und Fourier-Transformations, diskrete und fast Fourier-Transformations, Laplace-Transformations.

I am also looking for one on Electrical networks and switches, this is what its called in german anyhow. Following topics:

Sinusodal AC, Periodic non-sinus AC, Switches (on/off switches) in RLC networks, Laplace transformations

Thanks a bunch for any recommendations