Le complete formel d'un espace analytique le long d'un sous-espace: Un theoreme de comparaison
Le complete formel d'un espace analytique le long d'un sous-espace: Un theoreme de comparaison
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空间分析的完整形式:比较定理
DOI:
10.1007/bf01304612
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发表时间:
1972
期刊:
影响因子:
--
通讯作者:
C. Bănică
中科院分区:
文献类型:
--
作者:
C. Bănică
We prove here a theorem, which generalizes Grauert's comparison theorem ([4], Hauptsatz IIa; cf. also Knorr [7], Vergleichssatz) and which is an analogue of a Grothéndieck's result in Algebraic Geometry ([6], Chap. III., 4.1. 5). The proof makes essential use of a coherence theorem for sheaves of polynomials: Let X, Y be complex spaces, π: X→ Y a proper holomorphic map and T=(T 1,..., T N) a system of indeterminates. Then, for every O X [T] graded sheafm, all direct image sheaves R q π* m are Y [T]-coherent. The proof is as in [2].