Claus Peter Ortlieb

[4] Ortlieb studied the University of Hamburg where he earned his doctorate 1976 under the supervision of Lothar Collatz.

[5] The name of his dissertation was Dualität und Näherungsverfahren bei konvexen Steuerungsproblemen (English: "Duality and approximation methods in convex control problems").

[6] Ortlieb taught at the University of Hamburg as a professor at the faculty of mathematics from 1985 to 2011.

Ortlieb was one of the most known names of the writers in the magazine Krisis among Robert Kurz, Roswitha Scholz, Ernst Lohoff and Norbert Trenkle.

Ortlieb also wrote polemic articles in the paper Konkret.