What is Felix Klein?
[[Image:Felix Klein.jpeg|thumb|right|Felix Christian Klein]] '''Felix Christian Klein''' (April 25, 1849, [[Düsseldorf]], [[Prussia|Prussian Empire]] – June 22, 1925, [[Göttingen]], [[Germany]]) was a [[Germany|German]] [[mathematician]]. He became known for his work in [[group theory]], [[function theory]], [[non-Euclidean geometry]], and on the connections between [[geometry]] and [[group theory]]. His 1872 [[Erlangen program|Erlangen Program]], which ate geometries by their underlying symmetry [[group (mathematics)|groups]], was a hugely influential synthesis of much of the mathematics of the day. The [[Klein bottle]] is named after him. {{bio-stub}} {{authority control}} {{DEFAULTSORT:Klein, Felix Christian}} [[Category:German geometers|Klein, Felix Christian]] [[Category:1849 births]] [[Category:1925 deaths]] [[Category:German algebraists]]