M. Dahms, "Final Positivity Correction in the Harmonic Method", Texture, Stress, and Microstructure, vol. 21, Article ID 132904, 10 pages, 1993. https://doi.org/10.1155/TSM.21.61
Final Positivity Correction in the Harmonic Method
Final positivity correction of an ODF containing negative densities can be carried out using a linear variant of the exponential method. The phone-concept is automatically included. The final positivity correction corrects the truncation error of the harmonic method if the given series coefficients describe a totally positive axis distribution function.
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