The Kodaira dimension of spaces of rational curves on low degree hypersurfaces
The Kodaira dimension of spaces of rational curves on low degree hypersurfaces
复制标题
低次超曲面上有理曲线空间的小平维数
DOI:
--
复制
发表时间:
2003
期刊:
影响因子:
--
通讯作者:
J. Starr
中科院分区:
文献类型:
--
作者:
J. Starr
For a hypersurface in complex projective space $Xsubset PP^n$, we investigate the singularities and Kodaira dimension of the Kontsevich moduli spaces $Kbm{0,0}{X,e}$ parametrizing rational curves of degree $e$ on $X$. If $d+e leq n$ and $X$ is a general hypersurface of degree $d$, we prove that $Kbm{0,0}{X,e}$ has only canonical singularities and we conjecture the same is true for the coarse moduli space $kbm{0,0}{X,e}$.This investigation is motivated by the question of which Fano hypersurfaces are unirational.