I am writing a personal statement for graduate school the Berlin Mathematical School. As I understand it, honorifics are very important in Germany. I am wondering when and how to include them. Specifically:
I list 3-4 professors who I particularly want to work with. Some are Prof. Dr., some just Prof., and some just Dr., all as stated on the university website. Should I list honorifics for all? Or just say "Professors X, Y, Z, and X"?
I speak a good amount about work I did with a prof at my university. Should I write Prof. Dr. XYZ each time, or just when I first introduce him.
When mentioning mathematicians or authors, who are professor or doctors, but who are generally unimportant to the paper, whose names I really just want to quickly reference (eg. "In reading Marker's book I..." should I include the honorifics?
This is a very international program, taught in English. German isn't even a requirement. How stringent should I be about this sort of thing? Thanks!