Karl Zsigmondy


Karl Zsigmondy was an Austrian mathematician of [|HungariansHungarian [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 and worked 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 mountain climber Emil Zsigmondy and the Nobel Laureate chemist Richard Adolf Zsigmondy.