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Orthodontics - Dr. Stanley P. Werner and Dr. Scott P. wernerorthodontics.com | Julie Werner g-pact.org | Medicine | About | Faculty | Werner Rosenau,... pathology.ucsf.edu | - Physicians and Providers / Mike Werner,... oip.com |
Moritz Werner Fenchel (May 3, 1905 – January 24, 1988) was a mathematician known for his contributions to geometry and to optimization theory. Fenchel established the basic results of convex analysis and nonlinear optimization theory. Fenchel's monographs and lecture-notes were very influential also. Fenchel lived most of his life in Denmark.
[edit] Geometric contributions[edit] Convex geometryMain article: Convex geometry [edit] Optimization theoryMain article: Convex analysis See also: Legendre-Fenchel transformation and Fenchel's duality theorem Fenchel lectured on "Convex Sets, Cones, and Functions" at Princeton University in the early 1950s. His lecture notes shaped the field of convex analysis, according to the monograph Convex Analysis of R. T. Rockafellar. [edit] Hyperbolic geometryMain article: Hyperbolic geometry [edit] Biographical historyFenchel was born in Germany and wrote his doctorate thesis in geometry (Über Krümmung und Windung geschlossener Raumkurven) under Ludwig Bieberbach at the University of Berlin. He then taught at the University of Göttingen, until 1933 when the Nazi discrimination laws led to mass-firings of Jews. Fenchel fled to Denmark in 1933, and then obtained a position at the University of Copenhagen. When Germany occupied Denmark, Fenchel and roughly eight-thousand other Danish Jews received refuge in Sweden. After the liberation of Denmark, Fenchel returned to Copenhagen. [edit] Books
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