Cahit Arf
Cahit Arf ( born October 11, 1910 in Thessaloniki, † December 26, 1997 in Istanbul) was a Turkish mathematician. He is known for the Arf invariant of a quadratic form ( knot theory, topology), the Hasse - Arf theorem (branch ) and the Arf rings ( ring theory).
Life
Cahit Arf was born on 11 October 1910 in Thessaloniki, then part of the Ottoman Empire. After the outbreak of the Balkan War in 1912 his family moved to Istanbul. The family eventually settled in Izmir, where Cahit Arf received his primary education. With the help of a state scholarship, he continued his education at the École Normale Supérieure in Paris.
Back in Turkey, he taught mathematics at Galatasaray High School. In 1933 he began to study mathematics at the University of Istanbul, 1937, he went to the University of Göttingen, where he earned his doctorate and worked with Helmut Hasse.
He then worked at the University of Istanbul. In 1962, President Cemal Gursel him with the founding of the Turkish Scientific and Research Council ( TÜBİTAK ). In 1963 he worked at Robert College in Istanbul. From 1964 to 1966 he worked at the Institute for Advanced Study in Princeton. He also taught for a year at the University of California, Berkeley.
Upon his return to Turkey, he headed the Mathematics Institute of the Technical University of the Middle East and continued his research there until his retirement in 1980 continued.
Arf was a member of the Academy of Sciences and Literature and the Turkish Academy of Sciences. From 1985 to 1989 he was president of the Turkish Mathematical Society. He died on December 26, 1997 87 years in Bebek, Istanbul. His collected works were published in 1988 by the Turkish Mathematical Society.
Arf had great influence on the development of mathematics in Turkey. He supported and promoted nearly all of today's active in Turkey mathematician. Cahit Arf applies not only to Selman Akbulut as the most important Turkish mathematician of the 20th century.
Cahit Arf is depicted on the back of 2009 issued 10 Turkish lira note.
Awards
Cahit Arf - lectures
- 2010: John Morgan ( mathematician ), Stony Brook University
- 2009: Ben Joseph Green (University of Cambridge )
- 2008: Günter Harder ( University of Bonn and the Max Planck Institute for Mathematics )
- 2007: Hendrik Lenstra ( Leiden University )
- 2006: Jean -Pierre Serre ( Collège de France)
- 2005: Peter Sarnak ( Princeton University and Institute for Advanced Study )
- 2004: Robert Langlands ( Institute for Advanced Study )
- 2003: David Mumford ( Brown University, Division of Applied Mathematics )
- 2002: Don Zagier ( Utrecht University and Collège de France)
- 2001: Gerhard Frey ( University of Duisburg -Essen, Institute for Experimental Mathematics )