关于随机少项多项式实零点的个数
概率论
2019-12-24 v4
摘要
考虑一个由个随机实多项式组成的系统,其中每个具有由集合描述的 prescribed 项集,其基数为。假设的系数为任意方差的独立高斯变量,我们证明该随机系统在正象限中零点个数的期望由上界所限制。
引用
@article{arxiv.1811.09425,
title = {On the Number of Real Zeros of Random Fewnomials},
author = {Peter Bürgisser and Alperen A. Ergür and Josué Tonelli-Cueto},
journal= {arXiv preprint arXiv:1811.09425},
year = {2019}
}
备注
9 pages. 2nd version: Fixed an error in the proof of Corollary 2.2, which led to changes in some of the constants. Added a missing reference. Added proof of better bound for the univariate case. 3rd version: Improvement of the statement of the main theorem