Iterative performance of various formulations of the SPN equations
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In this paper, the Standard, Composite, and Canonical forms of the Simplified P N (SP N) equations are reviewed and their corresponding iterative properties are compared. The Gauss-Seidel (FLIP), Explicit, and preconditioned Source Iteration iterative schemes have been analyzed for both isotropic and highly anisotropic (Fokker-Planck) scattering. The iterative performance of the various SP N forms is assessed using Fourier analysis, corroborated with numerical experiments. 2013 Elsevier Inc.