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arXiv math/0509659math.AG
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雅可比簇上的重言式圈

Tautological Cycles on Jacobian Varieties

Giambattista Marini

摘要:

设C是亏格为g的复曲线,J(C)是它的Jacobian,R(C)是它的重言环,即代数圈模代数等价群.研究了R(C)的代数结构。特别是,我们给出了一个详细的描述,可能发生的所有可能性g<9:我们构造方便的基础,我们确定的矩阵表示的傅里叶变换和交叉和庞特里亚金产品明确。特别地,我们估计了R(C)的维数。

英文摘要:

Let C be a complex curve of genus g, let J(C) be its Jacobian and let R(C) be its tautological ring, that is, the group of algebraic cycles modulo algebraic equivalence. We study the algebraic structure of R(C). In particular, we give a detailed description of all the possibilities that may occur for g<9: we construct convenient basis and we determine the matrices representing the Fourier transform and both intersection and Pontryagin products explicitly. In particular, we estimate the dimension of R(C).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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