Skip to main content
3 of 3
clarify
Fredrik Johansson
  • 2.2k
  • 1
  • 17
  • 20

Elementary functions with zeros only at the positive integers

Does there exist a (meromorphic) elementary function $f(z)$ that is zero at all the positive integers $z = 1, 2, 3, \ldots$ and only at those points?

Edit: an elementary function can be written as a finite composition of constants, rational functions, exponentials and logarithms.

Obviously a function with those zeros can be constructed using the gamma function or a Weierstrass product, but the question is whether there is an elementary function.

Fredrik Johansson
  • 2.2k
  • 1
  • 17
  • 20