@Article{JCM-36-1, author = {Jerez-Hanckes, Carlos and Serge, Nicaise and Urzúa-Torres, Carolina}, title = {Fast Spectral Galerkin Method for Logarithmic Singular Equations on a Segment}, journal = {Journal of Computational Mathematics}, year = {2018}, volume = {36}, number = {1}, pages = {128--158}, abstract = {
We present a fast Galerkin spectral method to solve logarithmic singular equations on segments. The proposed method uses weighted first-kind Chebyshev polynomials. Convergence rates of several orders are obtained for fractional Sobolev spaces $\tilde{H}^{-1 ⁄ 2}$ (or $H^{-1 ⁄ 2}_{00}$). Main tools are the approximation properties of the discretization basis, the construction of a suitable Hilbert scale for weighted $L^2$-spaces and local regularity estimates. Numerical experiments are provided to validate our claims.
}, issn = {1991-7139}, doi = {https://doi.org/10.4208/jcm.1612-m2016-0495}, url = {https://global-sci.com/article/84461/fast-spectral-galerkin-method-for-logarithmic-singular-equations-on-a-segment} }