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.[1][2]
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.[3] 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.[2][1][4]