arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1201.6401math.AGmath.NT
收藏

非阿基米德热带判别式的有效结果

Effective Results on non-Archimedean Tropical Discriminants

Korben Rusek

摘要:

我们研究A-判别从非阿基米德的角度来看,细化早期的热带判别。特别地,我们研究了$A$是Z^n中n+m+1个点在一般位置上的集合的情形,并给出了在非阿基米德评价映射下计算A-判别簇的像的算法.当m=2时,我们的方法得到了n的二次紧下界和上界.我们还详细介绍了一个Sage软件包,用于绘制某些p-adic判别变形,并提出了明确的例子,点集产生判别变形与极值行为。

英文摘要:

We study A-discriminants from a non-Archimedean point of view, refining earlier work on the tropical discriminant. In particular, we study the case where $A$ is a collection of n+m+1 points in Z^n in general position, and give an algorithm to compute the image of the A-discriminant variety under the non-Archimedean evaluation map. When m=2, our approach yields tight lower and upper bounds, of order quadratic in n. We also detail a Sage package for plotting certain p-adic discriminant amoebae, and present explicit examples of point sets yielding discriminant amoebae with extremal behavior.

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。

↑