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A note on EC-tractability of multivariate approximation in weighted Korobov spaces for the standard information class
Journal of Complexity ( IF 1.8 ) Pub Date : 2021-04-26 , DOI: 10.1016/j.jco.2021.101573 Jie Zhang
中文翻译:
关于标准信息类加权 Korobov 空间中多元近似的 EC 可处理性的说明
更新日期:2021-04-26
Journal of Complexity ( IF 1.8 ) Pub Date : 2021-04-26 , DOI: 10.1016/j.jco.2021.101573 Jie Zhang
In this paper we study exponential tractability of multivariate approximation problem for weighted Korobov spaces in the worst case setting. The considered algorithms are constructive and use the class of only function evaluations. We give matching necessary and sufficient conditions for notions of EC-quasi-polynomial tractability and EC-uniform weak tractability in terms of two weight parameters of the problem.
中文翻译:
关于标准信息类加权 Korobov 空间中多元近似的 EC 可处理性的说明
在本文中,我们研究了最坏情况下加权 Korobov 空间的多元逼近问题的指数易处理性。所考虑的算法是建设性的,并使用类仅功能评估。我们根据问题的两个权重参数给出了 EC 准多项式易处理性和 EC 均匀弱易处理性概念的匹配充要条件。