Daniel Gisriel Rider, Jr. (23 July 23, 1938, Boston – 11 July 2008, Madison, Wisconsin) was a mathematician, specializing in harmonic analysis and Fourier analysis.
[1] After spending his childhood in New England, Daniel Rider moved with his family to Santa Ana, California, where he graduated from secondary school.
He received his bachelor's degree from Stanford University and in 1964 his PhD under Walter Rudin from the University of Wisconsin, Madison with thesis Gap Series, and Measures of Spheres.
Moore instructor at the Massachusetts Institute of Technology and then an assistant professor at Yale University.
In 1970 he was an invited speaker at the ICM in Nice.