Roger Apéry, Greek-French mathematician and academic (died 1994)

Roger Apéry (French: [apeʁi]; 14 November 1916, Rouen – 18 December 1994, Caen) was a Greek-French mathematician most remembered for Apéry's theorem, which states that ζ(3) is an irrational number. Here, ζ(s) denotes the Riemann zeta function.