Acta mathematica scientia,Series A ›› 2020, Vol. 40 ›› Issue (5): 1333-1340.

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Reproducing Kernel Method for Piecewise Smooth Boundary Value Problems

Zhihong Zhao*(),Yingzhen Lin   

  1. School of Science, Zhuhai Campus, Beijing Institute of Technology, Guangdong Zhuhai 519088
  • Received:2018-11-21 Online:2020-10-26 Published:2020-11-04
  • Contact: Zhihong Zhao E-mail:zhaozh39@163.com
  • Supported by:
    the Young Innovative Talents Program in Universities and Colleges of Guangdong Province(2018KQNCX338);the Characteristic Innovative Scientific Research Project of Guangdong Province(2019KTSCX217)

Abstract:

In this paper, an efficient reproducing kernel method(RKM) is proposed for solving the piecewise smooth BVP. By defining an operator $ {\cal L}:{W_{2}^{3}[0, 1]}\rightarrow {L_{2}[0, 1]}$ and applying the reproducing kernel property, we have skillfully solved the complex piecewise smooth BVP. The theorems show the accuracy of the algorithm. Furthermore, we get that the approximate solution $u_{n}(x)$ convergence to the exact one with order $O(h^2)$. That is, $u_{n}(x)$ has second order convergence in the sense of norm $\left\|\displaystyle. \right\|_{W_2^{3}}$. Finally, some numerical experiments are given to illustrate the algorithm is accuracy, simple and efficient.

Key words: Reproducing kernel method, Piecewise smooth, Convergence order

CLC Number: 

  • O241
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