Heuser, Harro, 1927-

Harro Heuser (December 26, 1927 in Nastätten – February 21, 2011 in Bingen) was a German mathematician. In German-speaking countries he is best known for his popular two-volume introduction into real analysis, Lehrbuch der Analysis. Heuser studied mathematics, physics and philosophy from 1948 to 1954 at the University of Tübingen to receive a teaching degree (Staatsexamen) and went on to study for his PhD, which he received in 1957. The advisor of his thesis, entitled Über Operatoren mit endlichen Defekten, was Helmut Wielandt. After receiving his PhD he moved to the University of Karlsruhe, where he received his habilitation in 1962. In 1963 he became a professor at the University of Kiel and in 1964 at the University of Mainz. Finally in spring 1969 he became a tenured professor at the University of Karlsruhe, where he remained until his retirement in 1996. He was also temporarily working as a visiting professor in the United States, Canada, Colombia and Italy.