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In mathematics, the Favard constant, also called the Akhiezer–Krein–Favard constant, of order ''r'' is defined as : This constant is named after the French mathematician Jean Favard, and after the Soviet mathematicians Naum Akhiezer and Mark Krein. ==Uses== This constant is used in solutions of several extremal problems, for example * Favard's constant is the sharp constant in Jackson's inequality for trigonometric polynomials * the sharp constants in the Landau–Kolmogorov inequality are expressed via Favard's constants * Norms of periodic perfect splines. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Favard constant」の詳細全文を読む スポンサード リンク
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