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In complex analysis, Harnack's principle or Harnack's theorem is one of several closely related theorems about the convergence of sequences of harmonic functions, that follow from Harnack's inequality. If the functions , , ... are harmonic in an open connected subset of the complex plane C, and : in every point of , then the limit : either is infinite in every point of the domain or it is finite in every point of the domain, in both cases uniformly in each compact subset of . In the latter case, the function : is harmonic in the set . ==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「Harnack's principle」の詳細全文を読む スポンサード リンク
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