MATHEMATICIAN

Cahit Arf

1910 - 1997

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Cahit Arf (Turkish: [dʒaːhit aɾf]; 24 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. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Cahit Arf is the 638th most popular mathematician (down from 556th in 2019), the 653rd most popular biography from Greece (down from 606th in 2019) and the 10th most popular Greek Mathematician.

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Among MATHEMATICIANS

Among mathematicians, Cahit Arf ranks 638 out of 1,004Before him are Alfréd Haar, Al-Qalqashandi, Douglas Hartree, Dinostratus, Polyaenus of Lampsacus, and François d'Aguilon. After him are Luigi Bianchi, Ludwig Bieberbach, John Playfair, Beppo Levi, Heinz Hopf, and Federico Commandino.

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Contemporaries

Among people born in 1910, Cahit Arf ranks 205Before him are Adoniran Barbosa, Tomoyuki Tanaka, Karl Hugo Strunz, Arsenie Boca, Viggo Kampmann, and Lee Wallard. After him are Jafar Sharif-Emami, Carlo Ceresoli, Peter Pears, Fei Xiaotong, Lupita Tovar, and Erkki Aaltonen. Among people deceased in 1997, Cahit Arf ranks 172Before him are Robert Herman, Edward Osóbka-Morawski, Bengt Danielsson, William Hickey, Aurelio González, and Tomoyuki Tanaka. After him are Béla Barényi, Myrtle Bachelder, Dulce María Loynaz, Sándor Végh, Jurek Becker, and Shinichi Hoshi.

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In Greece

Among people born in Greece, Cahit Arf ranks 653 out of 1,024Before him are Stylianos Gonatas (1876), Angelos Charisteas (1980), Nikos Beloyannis (1915), Antiphanes (-388), Dinostratus (-390), and Ioannis Malokinis (1880). After him are Labotas (null), Erigyius (-400), Petrobey Mavromichalis (1765), Gina Bachauer (1913), Markos Vamvakaris (1905), and John Zizioulas (1931).

Among MATHEMATICIANS In Greece

Among mathematicians born in Greece, Cahit Arf ranks 10Before him are Theaetetus (-417), Aristyllus (-400), Diocles (-240), Geminus (null), Francesco Barozzi (1537), and Dinostratus (-390). After him are Demetrios Christodoulou (1951).