David Drasin (born 3 November 1940, Philadelphia) is an American mathematician, specializing in function theory.
Drasin received in 1962 his bachelor's degree from Temple University and in 1966 his doctorate from Cornell University supervised by Wolfgang Fuchs and Clifford John Earle, Jr. with thesis An integral Tauberian theorem and other topics.
[3] In the 1930s, the problem was investigated by Nevanlinna and by, among others, Egon Ullrich(de) (1902–1957) with later investigations by Oswald Teichmüller (1913–1943), Hans Wittich, Le Van Thiem (1918–1991) and other mathematicians.
Anatolii Goldberg (1930–2008) was the first to completely solve the inverse problem in the special case where the number of exceptional values is finite.
[4] For entire functions the problem was solved in 1962 by Wolfgang Fuchs and Walter Hayman.