Riemann Hypothesis

Hypothesis
All the nontrivial zeroes of the analytic continuation of the Riemann zeta function $\zeta$ have a real part equal to $\dfrac 1 2$.

Critical Line

 * Critical-Strip.png

Also see

 * All Nontrivial Zeroes of Riemann Zeta Function are on Critical Strip
 * Critical Line Theorem: an infinite number of nontrivial zeroes exist on the critical line, whatever their multiplicity