Abstract
A three-level linearized difference scheme for the extended Fisher–Kolmogorov equation is considered. It is proved that the proposed difference scheme is uniquely solvable and unconditionally convergent. The convergence order in maximum norm is \(O(h^4+k^2)\), where k and h are the temporal and spatial grid sizes, respectively. The accurateness and effectiveness of the method are tested by taking various examples. The numerical results of the method are compared with the exact solutions and also compared with earlier published results. It is found that the proposed method produces more accurate results than the others available in the literature.
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Ismail, K., Atouani, N. & Omrani, K. A three-level linearized high-order accuracy difference scheme for the extended Fisher–Kolmogorov equation. Engineering with Computers 38 (Suppl 2), 1215–1225 (2022). https://doi.org/10.1007/s00366-020-01269-4
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DOI: https://doi.org/10.1007/s00366-020-01269-4