Open Subset;
Closed Subset;
Basic Tool;
Hausdorff Measure;
Trivial Extension;
D O I:
10.1007/s00209-003-0538-7
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
Let A be a closed subset of an open subset Omega of C-n and T be a negative current on Omega\A of bidimension (p,p). Assume that T is psh and A is complete pluripolar such that the Hausdorff measure H2p((SuppT) over bar boolean AND A), then T extends to a negative psh current on Omega. We also show that if T is psh or if dd(cT) extends to a current with locally finite mass on Omega, then the trivial extension (T) over tilde of T by zero across A exists in both cases: A is the zero set of a k-convex function with kless than or equal top-1 or H2(p-1)((SuppT) over bar boolean AND A) = 0. Our basic tool is the following theorem [El3]: Let A be a closed complete pluripolar subset of an open subset Omega of C-n and T be a positive current of bidimension (p,p) on Omega\A. Suppose that (T) over tilde and (dd(c)T) over tilde exist (resp. (T) over tilde exists and dd(c)T less than or equal to 0 Omega\A), then there exists a positive (resp. closed positive) current S supported in A such that (dd(c)T) over tilde = dd(c)(T) over tilde + S. Furthermore, we give a generalization of some theorems done by Siu and Ben Messaoud-El Mir and Alessandrini-Bassanelli without requiring anything from dT.
机构:
Chinese Acad Sci, Acad Math & Syst Sci, Inst Math, 55 Zhongguancun East Rd, Beijing 100190, Peoples R China
Chinese Acad Sci, Hua Loo Keng Key Lab Math, 55 Zhongguancun East Rd, Beijing 100190, Peoples R ChinaChinese Acad Sci, Acad Math & Syst Sci, Inst Math, 55 Zhongguancun East Rd, Beijing 100190, Peoples R China
机构:
Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R ChinaUniv Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
Deng, Fusheng
Ning, Jiafu
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, HNP LAMA, Sch Math & Stat, Changsha 410083, Peoples R ChinaUniv Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
Ning, Jiafu
Wang, Zhiwei
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h-index: 0
机构:
Beijing Normal Univ, Sch Math Sci, Minist Educ, Lab Math & Complex Syst, Beijing 100875, Peoples R ChinaUniv Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
机构:
School of Mathematical Sciences,University of Chinese Academy of SciencesSchool of Mathematical Sciences,University of Chinese Academy of Sciences
Fusheng Deng
Jiafu Ning
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h-index: 0
机构:
School of Mathematics and Statistics,HNP-LAMA,Central South UniversitySchool of Mathematical Sciences,University of Chinese Academy of Sciences
Jiafu Ning
Zhiwei Wang
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h-index: 0
机构:
Laboratory of Mathematics and Complex Systems (Ministry of Education),School of Mathematical Sciences,Beijing Normal UniversitySchool of Mathematical Sciences,University of Chinese Academy of Sciences