Abstract
In this paper, we present a fast and efficient numerical method to solve a class of parabolic integro-differential equations with weakly singular kernels, compact difference approach for spatial discretization and alternating direction implicit method in time, combined with second-order fractional quadrature rule suggested by Lubich approximating the integral term. The $$L^2$$ stability and convergence are derived. Two numerical examples with known exact solution are given to support the theoretical results.
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