### Mathematicians revive abandoned approach to the Riemann Hypothesis

The idea for the paper was sparked by a “toy problem” that Emory mathematician Ken Ono (left) presented as a “gift” to entertain Don Zagier (right), of the Max Planck Institute of Mathematics, to celebrate Zagier’s 65th birthday. The toy problem is seen on the whiteboard behind them. Credit: Emory University Many ways to approach…