Determinantal representations of hyperbolic curves via polynomial homotopy continuation
Determinantal representations of hyperbolic curves via polynomial homotopy continuation
复制标题
通过多项式同伦延拓的双曲曲线的行列式表示
DOI:
10.1090/mcom/3194
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Daniel
中科院分区:
文献类型:
--
作者:
Leykin;Plaumann;Daniel
A smooth curve of degreein the real projective plane is hyperbolic if its ovals are maximally nested, ie, its real points containnested ovals. By the Helton-Vinnikov theorem, any such curve admits a definite symmetric determinantal representation. We use polynomial homotopy continuation to compute such representations numerically. Our method works by lifting paths from the space of hyperbolic polynomials to a branched cover in the space of pairs of symmetric matrices. References
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