Symmetric iterative interpolation processes

Symmetric iterative interpolation processes
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DOI:
10.1007/978-1-4899-6886-9_3
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发表时间:
1989-12
影响因子:
2.7
通讯作者:
Gilles Deslauriers;S. Dubuc
Gilles Deslauriers;S. Dubuc
中科院分区:
数学2区
文献类型:
--
作者:
Gilles Deslauriers;S. Dubuc

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使用基带偶数结,我们定义了一个对称迭代插值过程.这个过程的主要性质来自一个相关的函数F。F的基本函数方程为F(t/B)=.证明了F是连续正定函数。我们几乎精确地发现,其中Lipschitz类衍生物的F属于。如果一个函数只定义在整数上,这个过程将连续地扩展到真实的轴。给出了这种迭代插值的误差界。
Using a baseband an even number of knots, we define a symmetric iterative interpolation process. The main properties of this process come from an associated functionF. The basic functional equation forFis thatF(t/b) =. We prove that F is a continuous positive definite function. We find almost precisely in which Lipschitz classes derivatives ofFbelong. If a functionyis defined only on integers, this process extendsycontinuously to the real axis as. Error bounds for this iterative interpolation are given.