The
name of Cahit Arf has became known internationally mainly through the following
two results : Firstly, the "Theorem of Hasse-Arf" from the ramification
theory of local fields, published in volume 181 (1939). Secondly,
the "Arf invariants" of quadratic forms in characteristic 2 which have
applications in various branches of mathematics. See volume 183 (1941).
Journal für die reine und angewandte Mathematik,
Volume 503/1998
Biographische
Angaben zu Leben und Werk von Arf fınden sich in seinen "Collected papers",
herausgegeben 1981 von der Türkischen Mathematischen Gesellschaft. Das
umseitige Foto stammt aus diesem Band.
Biographical
data about the life and the work of Arf can be found in his "Collected
papers", published in 1981 by the Turkish Mathematical Society. The photo
overleaf has been taken from that volume.