The region , where is defined as the real part of a complex number . All nontrivial zeros (i.e., those not at negative even integers) of the Riemann zeta function lie inside this strip.

Brent, R. P. "On the Zeros of the Riemann Zeta Function in the Critical Strip." Math. Comput. 33, 1361-1372, 1979.

Brent, R. P.; van de Lune, J.; te Riele, H. J. J.; and Winter, D. T. "On the Zeros of the Riemann Zeta Function in the Critical Strip. II." Math. Comput. 39, 681-688, 1982.

Havil, J. Gamma: Exploring Euler's Constant. Princeton, NJ: Princeton University Press, p. 195, 2003.

CITE THIS AS:

Weisstein, Eric W. "Critical Strip." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/CriticalStrip.html