David Widder

David Vernon Widder (25 March 1898 – 8 July 1990) was an American mathematician. He earned his Ph.D. at Harvard University in 1924 under George Birkhoff and went on to join the faculty there.

David Widder
Born	(1898-03-25)25 March 1898 Harrisburg, Pennsylvania, US
Died	8 July 1990(1990-07-08) (aged 92)
Nationality	American
Alma mater	Harvard University
Scientific career
Fields	Mathematics
Institutions	Harvard University
Doctoral advisor	George D. Birkhoff
Doctoral students	Gerald G. Bilodeau R. Creighton Buck Ralph P. Boas, Jr. Solomon W. Golomb Deborah Tepper Haimo I. I. Hirschman Donald J. Newman Harry Pitt Harry Pollard

He was a co-founder of the Duke Mathematical Journal and the author of the textbook Advanced Calculus (Prentice-Hall, 1947).^[1] He wrote also The Laplace transform^[2] (in which he gave a first solution to Landau's problem on the Dirichlet eta function),^[3] An introduction to transform theory,^[4] and The convolution transform (co-author with I. I. Hirschman).