MATHEMATICS OF COMPUTATION S 0025-5718(09)02211-X (2009)
Lower Bounds, For Z-numbers, Artūras Dubickas, J. Mossinghoff
Abstract. Let p/q be a rational noninteger number with p>q ≥ 2. A real number λ>0isaZ p/q-number if {λ(p/q) n} < 1/q for every nonnegative integer n, where{x} denotes the fractional part...