论文标题
投影量平坦的KLT品种
Projectively flat KLT varieties
论文作者
论文摘要
在均匀化问题的背景下,我们研究了具有KLT奇异性的投射品种,其Cotangent Sheaf在光滑的基因座上承认了一个扁平的结构。贾恩克·拉德洛夫(Jahnke-Radloff)的概括作品,我们表明,圆环的商是唯一具有半固定的造型捆和极端Chern类的KLT品种。随后是具有NEF标准化的Cotandangent滑轮的品种的类似结果。
In the context of uniformisation problems, we study projective varieties with klt singularities whose cotangent sheaf admits a projectively flat structure over the smooth locus. Generalising work of Jahnke-Radloff, we show that torus quotients are the only klt varieties with semistable cotangent sheaf and extremal Chern classes. An analogous result for varieties with nef normalised cotangent sheaves follows.