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Algorithms for nonnegative C2(R2) interpolation
Advances in Mathematics ( IF 1.7 ) Pub Date : 2021-04-28 , DOI: 10.1016/j.aim.2021.107756
Fushuai Jiang , Garving K. Luli

Let ER2 be a finite set, and let f:E[0,). In this paper, we address the algorithmic aspects of nonnegative C2 interpolation in the plane. Specifically, we provide an efficient algorithm to compute a nonnegative C2(R2) extension of f with norm within a universal constant factor of the least possible. We also provide an efficient algorithm to approximate the trace norm.



中文翻译:

非负C 2(R 2)插值算法

E[R2个 成为一个有限集,让 FE[0。在本文中,我们讨论了非负数的算法方面C2个平面中的插值。具体来说,我们提供了一种有效的算法来计算非负数C2个[R2个在最小可能的通用常数范围内用范数扩展f。我们还提供了一种有效的算法来近似跟踪规范。

更新日期:2021-04-29
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