Sums of Squares: A Real Projective Story
Sums of Squares: A Real Projective Story
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平方和:一个真实的投影故事
DOI:
10.1090/noti2280
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发表时间:
2021
影响因子:
--
通讯作者:
Velasco, Mauricio
中科院分区:
文献类型:
--
作者:
Blekherman, Grigoriy;Sinn, Rainer;Smith, Gregory G;Velasco, Mauricio
DOI: https://doi. org/10.1090/noti2280 function 2 (𝑥2− 𝑦𝑧)+ 1 is a sum of squares modulo the defining equation of the unit sphere, so this function is nonnegative on the sphere. Thus, we have a certificate that the minimum of 2 (𝑥2− 𝑦𝑧) on the unit sphere is at least− 1. This lower bound is optimal because the sum of squares 3𝑥2+(𝑦− 𝑧) 2 vanishes at the points±1
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DOI:
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发表时间:
2010
期刊:
--
影响因子:
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作者:
M. Schweighofer
通讯作者:
M. Schweighofer
DOI:
--
发表时间:
2016
期刊:
Journal des Mathématiques Pures et Appliquées
影响因子:
--
作者:
Grigoriy Blekherman;Gregory G. Smith;Mauricio Velasco
通讯作者:
Mauricio Velasco
影响因子:
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DOI:
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发表时间:
2021
期刊:
Oberwolfach Reports
影响因子:
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作者:
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通讯作者:
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DOI:
10.1137/16m1084560
发表时间:
2016
期刊:
SIAM J. Appl. Algebra Geom.
影响因子:
--
作者:
Grigoriy Blekherman;Rainer Sinn;Mauricio Velasco
通讯作者:
Mauricio Velasco