摘要翻译:
定义了线性级数曲线模空间上的重言Chow类。在曲线模空间的遗忘态射相对维数为零的情况下,我们在MGBar的Chow群中描述了这些类的图像。作为一个应用,我们计算了MGBAR上几类不同约数的(虚)斜率。
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英文标题:
《Tautological classes on moduli spaces of curves with linear series and a
push-forward formula when $\rho=0$》
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作者:
Deepak Khosla
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最新提交年份:
2007
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分类信息:
一级分类:Mathematics 数学
二级分类:Algebraic Geometry 代数几何
分类描述:Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology
代数簇,叠,束,格式,模空间,复几何,量子上同调
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英文摘要:
We define tautological Chow classes on the moduli space of curves with linear series. In the case where the forgetful morphism to the moduli space of curves has relative dimension zero, we describe the images of these classes in the Chow group of Mgbar. As an application, we compute the (virtual) slopes of several different classes of divisors on Mgbar.
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PDF链接:
https://arxiv.org/pdf/0704.1340