On the algebraicity of the zero locus of an admissible normal function
On the algebraicity of the zero locus of an admissible normal function
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关于容许正规函数的零轨迹的代数性
DOI:
10.1112/s0010437x1300729x
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发表时间:
2006
影响因子:
1.8
通讯作者:
G. Pearlstein
中科院分区:
文献类型:
--
作者:
P. Brosnan;G. Pearlstein
Abstract We show that the zero locus of an admissible normal function on a smooth complex algebraic variety is algebraic. In Part II of the paper, which is an appendix, we compute the Tannakian Galois group of the category of one-variable admissible real nilpotent orbits with split limit. We then use the answer to recover an unpublished theorem of Deligne, which characterizes the ${\mathrm{sl} }_{2} $-splitting of a real mixed Hodge structure.