Eric Marcus Opdam (born 1960) is a Dutch mathematician, specializing in algebra and harmonic analysis.
Opdam received his PhD from Leiden University in 1988 under the supervision of Gerrit van Dijk.
[2] Opdam's research deals with analytic aspects of Iwahori–Hecke algebras, with hypergeometric functions associated with Lie algebra root systems (Heckman-Opdam hypergeometric functions), and with Dunkl operators on complex reflection groups.
Opdam was an invited speaker in 2000 with talk Hecke algebras and harmonic analysis at the European Congress of Mathematics in Barcelona.
[4] In 2010 he received an Advanced Grant from the European Research Council (ERC).