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Births on October 11

1910Oct, 11

Cahit Arf

Cahit Arf, Turkish mathematician and academic (d. 1997)
Cahit Arf (Turkish: [dʒahit aɾf]; 11 October 1910 – 26 December 1997) was a Turkish mathematician. 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.

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