Zariski decompositions of numerical cycle classes
Zariski decompositions of numerical cycle classes
复制标题
数值循环类的 Zariski 分解
DOI:
10.1090/jag/677
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
Brian Lehmann
中科院分区:
文献类型:
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作者:
Mihai Fulger;Brian Lehmann
We construct a Zariski decomposition for cycle classes of arbitrary codimension. This decomposition is an analogue of well-known constructions for divisors. Examples illustrate how Zariski decompositions of cycle classes reflect the geometry of the underlying space. We also analyze the birational behavior of Zariski decompositions, leading to a Fujita approximation-type result for curve classes.