arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2109.00769math.AG
收藏

关于$(d+k,d)$型意外曲线

On unexpected curves of type $(d+k,d)$

Grzegorz Malara, Halszka Tutaj-Gasińska

摘要:

我们提出了一个建设解释存在的(意想不到的)曲线的程度$d+k$,通过一组$Z$的点上$\mathbb{P}^2$,并有一个泛点$P$的多重性$d$。该构造是基于与$Z$的点对偶的线的乘积的雅可比矩阵的$k$次幂的合矢。我们还证明了一个结果,它通过约束到与$P$对偶的线上的合合点的丛的分裂类型来刻画曲线的意外性。

英文摘要:

We present a construction explaining the existence of (unexpected) curves of degree $d+k$, passing through a set $Z$ of points on $\mathbb{P}^2$, and having a generic point $P$ of multiplicity $d$. The construction is based on the syzygies of the $k$-th powers of Jacobian of the product of lines dual to the points of $Z$. We prove also a result characterizing the unexpectedness of the curves via splitting type of the bundle of these syzygies retricted to the line dual to $P$.

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。

↑