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In mathematics, more precisely in complex analysis, the holomorphically convex hull of a given compact set in the ''n''-dimensional complex space C''n'' is defined as follows. Let stand for the set of holomorphic functions on For a compact set , the holomorphically convex hull of is : (One obtains a narrower concept of polynomially convex hull by requiring in the above definition that ''f'' be a polynomial.) The domain is called holomorphically convex if for every compact in , is also compact in . Sometimes this is just abbreviated as ''holomorph-convex''. When , any domain is holomorphically convex since then is the union of with the relatively compact components of . Also, being holomorphically convex is the same as being a domain of holomorphy (The Cartan–Thullen theorem). These concepts are more important in the case ''n'' > 1 of several complex variables. ==See also== * Stein manifold * Pseudoconvexity 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「Holomorphically convex hull」の詳細全文を読む スポンサード リンク
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