GoKawiilMathematicians push upper bound on de Bruijn–Newman constant down to 0.1787854
Researchers have tightened the known upper limit for the de Bruijn–Newman constant, denoted Λ, lowering it to 0.1787854 through refined computational and analytic techniques. Λ is a quantity known to sit between 0 and 0.2, and its value is directly tied to the truth of the Riemann hypothesis: Λ equals 0 exactly if and only if the hypothesis holds, so any improvement in its ceiling narrows the gap between what is proven and what is conjectured.