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Cartesian点集Lagrange投影算子的误差公式

Error Formulas of Lagrange Projectors for Cartesian Point Sets
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摘要 考虑多元插值问题的插值余项估计问题.针对好误差公式的概念,给出了推广好误差公式的概念,并以三维Cartesian点集为例,利用B样条与差商的关系给出Cartesian点集Lagrange插值误差公式的积分形式.该结果可以推广到d维空间中. This paper generalized good error formulas and considered Lagrange interpolation for Cartesian point sets.Taking 3-dimension Cartesian point sets for example,we provided the integral form of error formulas for this class of interpolation problem using the relationship between the B-spline and finite difference quotient.The results can be generalized in the d-dimensional Cartesian point sets.
作者 李喆 孙艳
出处 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2014年第5期911-915,共5页 Journal of Jilin University:Science Edition
基金 国家自然科学基金(批准号:11171133) 数学天元基金(批准号:11326209)
关键词 Cartesian点集 Lagrange投影算子 误差公式 Cartesian point sets Lagrange proj ectors error formulas
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参考文献14

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