Joachim A. Nitsche was a German mathematician and professor of mathematics in Freiburg, known for his important contributions to the mathematical and numerical analysis of partial differential equations.
Education
Nitsche graduated from school at Bischofswerda in 1946. Starting in summer 1947, he studied mathematics the University of Göttingen, where he received his Diplom (under supervision of Franz Rellich) after only six semesters. In 1951, he received his degree (Doctor of Natural Science) at the Technical University of Berlin-Charlottenburg (nowadays Technology Union Berlin).
After only two years, he received his Habilitation at the Free University of Berlin.
Career
The duality argument for estimating the error of the finite element method and a scheme for the weak enforcement of Dirichlet boundary conditions for Poisson"s equation bear his name. Education Professional career From 1955 to 1957, Nitsche held a teaching position at the Free University of Berlin, which he left for a position at International Business Machines Corporation in Böblingen. He became professor at the Albert Ludwigs University of Freiburg in 1958 and received the chair for Applied Mathematics there in 1962.
He remained in this position until he became emeritus in 1991.