On the tangentially degenerate curves, II
On the tangentially degenerate curves, II
复制标题
在切向简并曲线上,II
DOI:
10.1007/s00574-014-0072-8
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Hajime
中科院分区:
文献类型:
--
作者:
KAJI;Hajime
A projective curveXin ℙNis said to betangentially degenerateif a tangent line toXat a general pointPmeetsXagain at a point other thanP. In this article, we prove that ifXis tangentially degenerate in characteristic zero, thenXis contained in a 2-plane under a certain condition on singularities ofX. We also investigate a counter-example of E. Esteves and M. Homma in positive characteristic case, and present a conjecture that our investigation leads to.