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In mathematics, the Schur class consists of the Schur functions: the holomorphic functions from the open unit disk to the closed unit disk. These functions were studied by . The Schur parameters γ''j'' of a Schur function ''f''0 are defined recursively by : : The Schur parameters γ''j'' all have absolute value at most 1. This gives a continued fraction expansion of the Schur function ''f''0 by repeatedly using the fact that : which gives : ==References== * * * 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「Schur class」の詳細全文を読む スポンサード リンク
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