Optimal error estimate of an accurate second-order scheme for Volterra integrodifferential equations with tempered multi-term kernels

نویسندگان

چکیده

In this paper, we investigate and analyze numerical solutions for the Volterra integrodifferential equations with tempered multi-term kernels. Firstly, derive some regularity estimates of exact solution. Then a temporal-discrete scheme is established by employing Crank-Nicolson technique product integration (PI) rule discretizations time derivative tempered-type fractional integral terms, respectively, from which, nonuniform meshes are applied to overcome singular behavior solution at $$t=0$$ . Based on deduced conditions, prove that proposed unconditionally stable possesses accurately temporal second-order convergence in $$L_2$$ -norm. Numerical examples confirm effectiveness method.

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ژورنال

عنوان ژورنال: Advances in Computational Mathematics

سال: 2023

ISSN: ['1019-7168', '1572-9044']

DOI: https://doi.org/10.1007/s10444-023-10050-2