| ชื่อเรื่อง | : | A well-conditioned collocation method using a pseudospectral integration matrix |
| นักวิจัย | : | Wang, Li-Lian , Samson, Michael Daniel , Zhao, Xiaodan |
| คำค้น | : | DRNTU::Science::Mathematics |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2557 |
| อ้างอิง | : | Wang, L.-L., Samson, M. D., & Zhao, X. (2014). A Well-Conditioned Collocation Method Using a Pseudospectral Integration Matrix. SIAM Journal on Scientific Computing, 36(3), A907-A929. , 1064-8275 , http://hdl.handle.net/10220/20368 , http://dx.doi.org/10.1137/130922409 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | SIAM journal on scientific computing |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | In this paper, a well-conditioned collocation method is constructed for solving general $p$th order linear differential equations with various types of boundary conditions. Based on a suitable Birkhoff interpolation, we obtain a new set of polynomial basis functions that results in a collocation scheme with two important features: the condition number of the linear system is independent of the number of collocation points, and the underlying boundary conditions are imposed exactly. Moreover, the new basis leads to an exact inverse of the pseudospectral differentiation matrix of the highest derivative (at interior collocation points), which is therefore called the pseudospectral integration matrix (PSIM). We show that PSIM produces the optimal integration preconditioner and stable collocation solutions with even thousands of points. |
| บรรณานุกรม | : |
Wang, Li-Lian , Samson, Michael Daniel , Zhao, Xiaodan . (2557). A well-conditioned collocation method using a pseudospectral integration matrix.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Wang, Li-Lian , Samson, Michael Daniel , Zhao, Xiaodan . 2557. "A well-conditioned collocation method using a pseudospectral integration matrix".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Wang, Li-Lian , Samson, Michael Daniel , Zhao, Xiaodan . "A well-conditioned collocation method using a pseudospectral integration matrix."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print. Wang, Li-Lian , Samson, Michael Daniel , Zhao, Xiaodan . A well-conditioned collocation method using a pseudospectral integration matrix. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.
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