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On Direct and Semi-Direct Inverse of Stokes, Helmholtz and Laplacian Operators in View of Time-Stepper-Based Newton and Arnoldi Solvers in Incompressible CFD. Commun. Comput. Phys. 2013, 14 (4), 1103-1119. https://doi.org/10.4208/cicp.300412.010213a.