超空間群応用入門 (その1 : 変調構造) [in Japanese] Introduction to Superspace Groups (Part 1. Modulated Structure) [in Japanese]
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The application of the theory of superspace groups to the modulated structure with a four-dimensional symmetry is reviewed. Some characters of incommensurate diffraction patterns, important relations between the three-dimensional space and four-dimensional superspace, four-dimensional structure factors, four-dimensional symmetry operations are summarized.
X-RAYS 40(2), 161-176, 1998-04-28
The Crystallographic Society of Japan