The Felix Klein reference article from the English Wikipedia on 24-Jul-2004
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Felix Klein

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Felix Christian Klein (April 25, 1849June 22, 1925) was a German mathematician.

Klein was born in Düsseldorf, Germany. He was a professor at the Universities of Erlangen, Munich, Leipzig and finally Göttingen, teaching mathematics. His major topics were non-Euclidean geometry, group theory and function theory. His enunciation of the Erlangen programme classifying geometries by their underlying group of symmetries was hugely influential: a synthesis of much of the mathematics of its time.

He died in Göttingen.

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