David William Boyd (born 17 September 1941) is a Canadian mathematician who does research on harmonic and classical analysis, inequalities related to geometry, number theory, and polynomial factorization, sphere packing, number theory involving Diophantine approximation and Mahler's measure, and computer computations.
and in 1966 his Ph.D. from the University of Toronto under Paul George Rooney with thesis The Hilbert transformation on rearrangement invariant Banach spaces.
Boyd has done research on classical and harmonic analysis, including interpolation spaces, integral transforms, and potential theory, and research on inequalities involving geometry, number theory, polynomials, and applications to polynomial factorization.
Boyd has studied number theory, such as diophantine approximation, the Pisot and Salem numbers, Pisot sequences, Mahler’s measure, applications to symbolic dynamics, and special values of L-functions and polylogarithms.
His doctoral students include Peter Borwein.