研究了具有控制混合光滑性的d维周期Sobolev空间的样条插值逼近.考虑基于基样条插值的Smolyak算法.相应于基于等距节点多项式样条插值的Smolyak算法,得到了一个误差估计.
Spline interpolation approximation of d-variate periodic Sobolev space with dominating mixed smoothness is studied.Smolyak algorithm is considered based on cardinal splines.An estimation has been obtained for Smolyak algorithm based on polynomial spline interpolation at equidistant knots.