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Khintchine inequality : ウィキペディア英語版 | Khintchine inequality In mathematics, the Khintchine inequality, named after Aleksandr Khinchin and spelled in multiple ways in the Roman alphabet, is a theorem from probability, and is also frequently used in analysis. Heuristically, it says that if we pick complex numbers , and add them together each multiplied by a random sign , then the expected value of its modulus, or the modulus it will be closest to on average, will be not too far off from . ==Statement of theorem==
Let be i.i.d. random variables with for every , i.e., a sequence with Rademacher distribution. Let 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「Khintchine inequality」の詳細全文を読む
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