| Karl Zsigmondy | |
|---|---|
| Born | March 27, 1867 Vienna, Austro-Hungarian Empire |
| Died | October 14, 1925 (aged 58) Vienna, Austria |
| Residence | Austria |
| Nationality | Austro-Hungarian Empire, Austria |
| Fields | Mathematics |
| Institutions | University of Vienna |
| Alma mater | University of Vienna |
| Known for | Zsigmondy's theorem |
Karl Zsigmondy (pronounced [ʒigmondi]) was an Austrian mathematician of Hungarian ethnicity. He was a son of Adolf Zsigmondy from Pozsony, Kingdom of Hungary and his mother was Irma von Szakmáry of Martonvásár, Kingdom of Hungary.
He studied (1886–1890) and worked (1894–1925) at the University of Vienna. After his phd, in 1890, he studied at the University of Berlin, University of Göttingen and at the Sorbonne in Paris, but came back to Vienna in 1894. He discovered Zsigmondy's theorem in 1882.
He was the brother of the Nobel Laureate Chemist Richard Adolf Zsigmondy.