A new proof of the Alexander-Hirschowitz interpolation theorem
A new proof of the Alexander-Hirschowitz interpolation theorem
复制标题
亚历山大-赫肖维茨插值定理的新证明
DOI:
--
复制
发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Elisa Postinghel
中科院分区:
文献类型:
--
作者:
Elisa Postinghel
The classical polynomial interpolation problem in several variables can be generalized to the case of points with greater multiplicities. What is known so far is essentially concentrated in the Alexander-Hirschowitz Theorem which says that a general collection of double points in $${mathbb{P}^r}$$ gives independent conditions on the linear system $${fancyscript{L}}$$ of the hypersurfaces of degree d, with a well known list of exceptions. We present a new proof of this theorem which consists in performing degenerations of $${mathbb{P}^r}$$ and analyzing how $${fancyscript{L}}$$ degenerates.