An example of a non-projective smooth compactification of ℂ3 with second Betti number equal to one

An example of a non-projective smooth compactification of ℂ3 with second Betti number equal to one
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ℂ3 的非投影平滑压缩示例,其中第二个 Betti 数等于 1

DOI:
10.1007/bf01450477
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发表时间:
1994
影响因子:
1.4
通讯作者:
M. Furushima
M. Furushima
中科院分区:
数学2区
文献类型:
--
作者:
M. Furushima

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本文的目的是构造c3的二阶Betti数b2 (X)= 1的非射影光滑moisheson紧化(X, Y)的一个新例子。在附录中,我们将给出我们在第3节中需要的定理的证明:定理0 (Peternell)。设iX, Y)是c3的光滑非射影moisheson紧化,且b2 (X)= 1。设Y为nef,则(0.1)Y是X上的一个大的半样本不可约约数。(0.2)存在一个小的分缩~:X—~ V,使得(1)~的例外集由Y中支持的有限多条光滑有理曲线Ci (1<-i<-N)组成,且
The purpose of this paper is to construct a new example of a non-projective smooth Moishezon compactification (X, Y) of C 3 with the second Betti number b2 (X)= 1. In Appendix, we shall give a proof of the following theorem which we need in Sect. 3:Theorem 0 (Peternell). Let iX, Y) be a smooth non-projective Moishezon compactification of C 3 with b2 (X)= 1. Assume that Y is nef Then (0.1) Y is a big and semi-ample irreducible divisor on X.(0.2) there exists a small birational contraction~: X--~ V such that (1) the exceptional set of~ consists of finitely many smooth rational curves Ci (1<-i<-N) supported in Y, and
C^3(1) 的 Shingular Fano 紧化
DOI: --
发表时间: 2004
期刊: Math.Z. 248
影响因子: --
作者:
H.Tokunaga;Gunther Cornelissen;Masato Kurihara;M.furushima
通讯作者: M.furushima