A 3D fast Fourier transform method with a linear-programming-derived power spectrum simulates CMB maps on partial-sky patches, with operation-count scaling suggesting speed advantages over HEALPix for some survey sizes.
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Simulating Partial Sky Cosmic Microwave Background Maps with 3D Fast Fourier Transforms
A 3D fast Fourier transform method with a linear-programming-derived power spectrum simulates CMB maps on partial-sky patches, with operation-count scaling suggesting speed advantages over HEALPix for some survey sizes.