@Article{AAMM-16-3, author = {Xianru, Chen and Lin, Li}, title = {Oversampled Collocation Approximation Method of Functions via Jacobi Frames}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2024}, volume = {16}, number = {3}, pages = {569--588}, abstract = {
In this paper, we study the Jacobi frame approximation with equispaced samples and derive an error estimation. We observe numerically that the approximation accuracy gradually decreases as the extended domain parameter $\gamma$ increases in the uniform norm, especially for differentiable functions. In addition, we show that when the indexes of Jacobi polynomials $α$ and $β$ are larger (for example max$\{α,β\} > 10$), it leads to a divergence behavior on the frame approximation error decay.
}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.OA-2022-0071}, url = {https://global-sci.com/article/90861/oversampled-collocation-approximation-method-of-functions-via-jacobi-frames} }