- Joachim Nitsche
Joachim A. Nitsche (
September 2 1926 –January 12 1996 ) was a Germanmathematician and professor ofmathematics inFreiburg , known for his important contributions to the mathematical andnumerical analysis ofpartial differential equations . The duality argument for estimating the error of thefinite element method and a scheme for the weak enforcement ofDirichlet boundary condition s forPoisson's equation bear his name.Biography
Education
Nitsche graduated from school at
Bischofswerda in 1946. Starting in summer 1947, he studiedmathematics theUniversity of Göttingen , where he received hisDiplom (under supervision ofFranz Rellich ) after only six semesters. In 1951, he received his degree (Dr. rer. nat.) at the Technical University of Berlin-Charlottenburg (nowadaysTU Berlin ). After only two years, he received hisHabilitation at theFree University of Berlin .Marriage and children
In 1952, Nitsche married Gisela Lange, with whom he had three children.
Professional career
From 1955 to 1957, Nitsche held a teaching position at the
Free University of Berlin , which he left for a position atIBM inBöblingen . He became professor at theAlbert Ludwigs University of Freiburg in 1958 and received the chair forApplied Mathematics there in 1962. He remained in this position until he becameemeritus in 1991.Works
Contributions
Quasi-optimal error estimates for the finite element method
Point-wise error estimates for the finite element method
Publications
to be added
References
* Amann, H., Helfrich, H.-P., Scholz, R. "Joachim A. Nitsche (1926-1996)", Jahresbericht der Deutschen Mathematikervereinigung 99 (1997) 90-100.
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