The nontrivial zeros of the Riemann zeta function correspond to the eigenvalues of some Hermitian operator (Derbyshire 2004, pp. 277-278).
Hilbert-Pólya Conjecture
See also
Montgomery-Odlyzko Law, Montgomery's Pair Correlation Conjecture, Riemann Zeta Function ZerosExplore with Wolfram|Alpha
References
Derbyshire, J. Prime Obsession: Bernhard Riemann and the Greatest Unsolved Problem in Mathematics. New York: Penguin, 2004.Referenced on Wolfram|Alpha
Hilbert-Pólya ConjectureCite this as:
Weisstein, Eric W. "Hilbert-Pólya Conjecture." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Hilbert-PolyaConjecture.html