Definition of Riemann zeta function in English:

Riemann zeta function

(also Riemann's zeta function)

noun

Mathematics
  • An analytic function ζ of the complex variable z equal to 1−z + 2−z + 3−z + … when the real part of z is greater than 1. Also written Riemann ζ function.

Origin

Late 19th century; earliest use found in Messenger of Mathematics.