A Spectral Collocation Method for Nonlinear Fractional Boundary Value Problems with a Caputo Derivative

2017 ◽  
Vol 76 (1) ◽  
pp. 166-188 ◽  
Author(s):  
Chuanli Wang ◽  
Zhongqing Wang ◽  
Lilian Wang
2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Lufeng Yang

A novel rational spectral collocation method is presented combined with the singularity-separated technique for a system of singularly perturbed boundary value problems. The solution is expressed as u=w+v, where w is the solution of the corresponding auxiliary boundary value problem and v is a singular correction with explicit expressions. The rational spectral collocation method in barycentric form with the sinh transformation is applied to solve the auxiliary third boundary problem. The parameters of the singular correction can be determined by the boundary conditions of the original problem. Numerical experiments are carried out to support theoretical results and provide a favorable comparison with research results of other work.


Author(s):  
Johnny Henderson ◽  
Nickolai Kosmatov

AbstractWe apply the theory for u 0-positive operators to obtain eigenvalue comparison results for a fractional boundary value problem with the Caputo derivative.


Author(s):  
Changpin Li ◽  
Fanhai Zeng ◽  
Fawang Liu

AbstractIn this paper, the spectral approximations are used to compute the fractional integral and the Caputo derivative. The effective recursive formulae based on the Legendre, Chebyshev and Jacobi polynomials are developed to approximate the fractional integral. And the succinct scheme for approximating the Caputo derivative is also derived. The collocation method is proposed to solve the fractional initial value problems and boundary value problems. Numerical examples are also provided to illustrate the effectiveness of the derived methods.


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