TY - JOUR T1 - Convergence Analysis of the Spectral Methods for Weakly Singular Volterra Integro-Differential Equations with Smooth Solutions AU - Wei , Yunxia AU - Chen , Yanping JO - Advances in Applied Mathematics and Mechanics VL - 1 SP - 1 EP - 20 PY - 2012 DA - 2012/04 SN - 4 DO - http://doi.org/10.4208/aamm.10-m1055 UR - https://global-sci.org/intro/article_detail/aamm/103.html KW - Volterra integro-differential equations, weakly singular kernels, spectral methods, convergence analysis. AB -
The theory of a class of spectral methods is extended to Volterra integro-differential equations which contain a weakly singular kernel $(t-s)^{-\mu}$ with $0<\mu<1$. In this work, we consider the case when the underlying solutions of weakly singular Volterra integro-differential equations are sufficiently smooth. We provide a rigorous error analysis for the spectral methods, which shows that both the errors of approximate solutions and the errors of approximate derivatives of the solutions decay exponentially in $L^\infty$-norm and weighted $L^2$-norm. The numerical examples are given to illustrate the theoretical results.