Ernst Hellinger
| Ernst Hellinger | |
|---|---|
Courtesy MFO
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| Born |
September 30, 1883 Striegau, Silesia Province |
| Died | March 28, 1950 (aged 66) Chicago, United States |
| Nationality | German |
| Fields | Mathematics |
| Institutions | Northwestern University |
| Alma mater | University of Göttingen |
| Doctoral advisor | David Hilbert |
| Doctoral students |
Martinus Esser Richard Stark Marion Wetzell |
| Known for | Hellinger distance |
Ernst David Hellinger (September 30, 1883 – March 28, 1950) was a German mathematician.
Ernst Hellinger was born on September 30, 1883 in Striegau, Silesia, Germany (now Strzegom, Poland) to Emil and Julie Hellinger. He grew up in Breslau, attended school and graduated from the Gymnasium there in 1902. When he was studying at the Gymnasium, he became fascinated with mathematics, due to excellent mathematics teachers at the school.
After graduating from the Gymnasium, Ernst Hellinger entered the University of Heidelberg, but didn't complete his studies there. After Heidelberg, he studied at the University of Breslau, before completing his doctorate at the University of Göttingen in 1907 with a thesis entitled Die Orthogonalinvarianten quadratischer Formen von unendlich vielen Variablen. At Göttingen he worked with David Hilbert, one of the most influential mathematicians of the 20th century.
Hellinger taught at the University of Göttingen (1907–1909), the University of Marburg (1909–1914), and the University of Frankfurt (1914–1935).
Adolf Hitler came to power in Germany in 1933, and while they were in power the Nazis removed several Jewish scientists and mathematicians from German universities. Hellinger's family was Jewish, and he was removed from the faculty of the University of Frankfurt in 1936.
On November 13, 1938, Hellinger was arrested, taken to the Festhalle, and then put into Dachau concentration camp. Fortunately his friends were able to arrange a temporary job for Hellinger at Northwestern University at Evanston, Illinois in the United States. He was released from the Dachau camp after six weeks, on condition that he emigrate immediately.
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