Notions of numerical Iitaka dimension do not coincide
Notions of numerical Iitaka dimension do not coincide
复制标题
数值 Iitaka 维数的概念不一致
DOI:
10.1090/jag/763
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发表时间:
2021
影响因子:
1.8
通讯作者:
Lesieutre, John
中科院分区:
文献类型:
--
作者:
Lesieutre, John
Letbe a smooth projective variety. The Iitaka dimension of a divisoris an important invariant, but it does not only depend on the numerical class of. However, there are several definitions of ``numerical Iitaka dimension'', depending only on the numerical class. In this note, we show that there exists a pseuodoeffective-divisor for which these invariants take different values. The key is the construction of an example of a pseudoeffective-divisorfor whichis bounded above and below by multiples offor any sufficiently ample.
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影响因子:
1.7
作者:
P. Cascini;Christopher D. Hacon;M. Mustaţă;Karl Schwede
通讯作者:
P. Cascini;Christopher D. Hacon;M. Mustaţă;Karl Schwede
DOI:
10.4310/pamq.2018.v14.n3.a9
发表时间:
2019
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
Nicholas McCleerey
通讯作者:
Nicholas McCleerey
DOI:
10.2140/ant.2013.7.1065
发表时间:
2011
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
Brian Lehmann
通讯作者:
Brian Lehmann
影响因子:
0.6
作者:
K. Oguiso
通讯作者:
K. Oguiso