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Cahit Arf
Turkish mathematician (1910–1997)
Cahit Arf (Turkish:[dʒaːhitaɾf]; 24 October 1910 – 26 December 1997) was a Turkishmathematician. He is known for the Arf invariant of a quadratic form in characteristic 2 (applied in knot theory and surgery theory) in topology, the Hasse–Arf theorem in ramification theory, Arf semigroups and Arf rings.
Biography
Cahit Arf was born on 11 October 1910[1] in Thessaloniki, which was then a part of the Ottoman Empire.
Cahit arf wikipedia
His family migrated to Istanbul with the outbreak of the Balkan War in 1912. The family finally settled in İzmir where Cahit Arf received his primary education. Upon receiving a scholarship from the Turkish Ministry of Education he continued his education in Paris and graduated from École Normale Supérieure.
Returning to Turkey, he taught mathematics at Galatasaray High School. In 1933 he joined the Mathematics Department of Istanbul University. In 1937 he went to Göttingen, where he rece