Carl Ludwig Siegel
B: Berlin, Germany, December 31, 1896 - D: Göttingen, Germany, April 4, 1981
Source: Wikipedia |
In his life, Siegel made many major contributions to the field of mathematics with his work on number theory, Diophantine equations, celestial mechanics, and much more. In 1978, Siegel was awarded the first Wolf Prize in Mathematics, which is one of the most prestigious awards in the field. Siegel also proved important theorems in the theory of analytical functions of several complex numbers, which the Siegel zero came from. Due to his many contributions, Siegel has become a popular name in the field of mathematics even in his death.
Felix Christian Klein
B: Düsseldorf, Prussia, April 25, 1849 - D: Göttingen, Germany, June 22, 1925
Felix Christian Klein, born in Düsseldorf, is famous for his work in the fields of geometry, group theory, and function theory. Klein studied physics and mathematics at the University of Boon, where he originally intended to be a physicist. Klein received his doctorate under Julius Plucker, whose main interest was in geometry, which may have helped pique Klein's interest in the field. After receiving his doctorate, Klein served for a short time as a medical orderly in the Prussian army before being appointed as a lecturer at Göttingen. At only 23, Klein became a professor of mathematics at Erlang, then a professor at the University of Leipzig, and finally a professor at University of Göttingen where he would teach until his retirement.
While teaching at Göttingen, Klein helped establish a mathematics research center that became world-renowned. Klein also served as editor of the Mathematische Annalen, which was one of the most highly regarded mathematical journals of its time, thanks to his leadership. Today, Klein is most remembered for his work in geometry and complex analysis, and his proof that non-Euclidean geometry is equiconsistent with Euclidean geometry, as well as developing mathematical curriculum in secondary schools which were accepted worldwide. Many amateur mathematicians may also be familiar with the paradoxical "Klein bottle," a surface with no boundary and only one side, similar to the Möbius strip. Due to his contributions and mathematical breakthroughs, Klein received the Copley Medal of the (Royal) Society (of London) and the De Morgan Medal of the London Mathematical Society. Moreover while it is hard to compare anything to his major breakthroughs and contributions to mathematics, one of his most inspiring accomplishments was his work to allow women to study at Göttingen, which opened the door to women in mathematics in Germany.
Carl Gustav Jacob Jacobi
B: Potsdam, Prussia, December 10, 1804 - D: Berlin, Germany, February 18, 1851
Source: Wikipedia |
While working as a mathematics professor Jacobi made fundamental contributions to elliptic functions, dynamics, number theory, and differential equations. Sadly, Jacobi died at 46 from smallpox but left a huge mathematical legacy. Today, many mathematical objects and concepts are named after him, such as the Jacobi symbol, the Jacobi elliptic functions, and the Jacobian matrix of a vector-valued function.
Did you notice some people were missing? Of course we couldn't write about them all, so here are some German mathematicians we talked about in the past: Bernhard Riemann, Carl Gauss, David Hilbert, Emmy Noether, and Gottfried W. Leibniz. If you have any German mathematicians you want us to talk about, just comment the name and we may write about them for a future Throwback Fact post.
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