| David Widder | |
| Birth Date: | 25 March 1898 |
| Birth Place: | Harrisburg, Pennsylvania, US |
| Nationality: | American |
| Fields: | Mathematics |
| Workplaces: | Harvard University |
| Alma Mater: | Harvard University |
| Doctoral Advisor: | George D. Birkhoff |
| Doctoral Students: | R. Creighton Buck Ralph P. Boas, Jr. Solomon W. Golomb Deborah Tepper Haimo I. I. Hirschman Donald J. Newman Harry Pitt Harry Pollard |
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.
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).