Postnikov, Aleksey Georgievich On some trigonometric inequalities. (Über einige trigonometrische Ungleichungen.) (Russian) Zbl 0043.27603 Dokl. Akad. Nauk SSSR, n. Ser. 81, 501-504 (1951). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 26D15 Inequalities for sums, series and integrals Keywords:trigonometric inequalities × Cite Format Result Cite Review PDF