Advances in Computational Mathematics
Journal of Computational and Applied Mathematics
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In this paper, we develop a fast multiscale Galerkin method to solve the Fredholm integral equations of the first kind via Tikhonov regularization. The method leads to fast solutions of discrete regularization methods. We obtain optimal convergence rates for approximate solutions with an a priori parameter choice and a kind of discrepancy principle. Finally, numerical experiments are given to illustrate the efficiency of the method.