Functional norms, condition numbers and numerical algorithms in algebraic geometry
Functional norms, condition numbers and numerical algorithms in algebraic geometry
复制标题
代数几何中的函数范数、条件数和数值算法
DOI:
10.1017/fms.2022.89
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Tonelli-Cueto, Josué
中科院分区:
文献类型:
--
作者:
Cucker, Felipe;Ergür, Alperen A.;Tonelli-Cueto, Josué
In numerical linear algebra, a well-established practice is to choose a norm that exploits the structure of the problem at hand to optimise accuracy or computational complexity. In numerical polynomial algebra, a single norm (attributed to Weyl) dominates the literature. This article initiates the use of norms for numerical algebraic geometry, with an emphasis on . This classical idea yields strong improvements in the analysis of the number of steps performed by numerous iterative algorithms. In particular, we exhibit three algorithms where, despite the complexity of computing -norm, the use of -norms substantially reduces computational complexity: a subdivision-based algorithm in real algebraic geometry for computing the homology of semialgebraic sets, a well-known meshing algorithm in computational geometry and the computation of zeros of systems of complex quadratic polynomials (a particular case of Smale’s 17th problem).
登录
查看更多内容
DOI:
10.1090/jams/938
发表时间:
2017
期刊:
ArXiv
影响因子:
--
作者:
Pierre Lairez
通讯作者:
Pierre Lairez
DOI:
10.14279/depositonce-9453
发表时间:
2019
期刊:
--
影响因子:
--
作者:
Josué Tonelli
通讯作者:
Josué Tonelli
影响因子:
3
作者:
Peter Bürgisser;F. Cucker;Josué Tonelli
通讯作者:
Josué Tonelli
影响因子:
3
作者:
C. Beltrán;L. M. Pardo
通讯作者:
L. M. Pardo
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
S. Mendelson;G. Paouris
通讯作者:
G. Paouris