Symmetry-Adapted Fourier Series for the Wallpaper Groups
AbstractTwo-dimensional (2D) functions with wallpaper group symmetry can be written as Fourier series displaying both translational and point-group symmetry. We elaborate the symmetry-adapted Fourier series for each of the 17 wallpaper groups. The symmetry manifests itself through constraints on and relations between the Fourier coefficients. Visualising the equivalencies of Fourier coefficients by means of discrete 2D maps reveals how direct-space symmetry is transformed into coefficient-space symmetry. Explicit expressions are given for the Fourier series and Fourier coefficient maps of both real and complex functions, readily applicable to the description of the properties of 2D materials like graphene or boron-nitride.
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Verberck, B. Symmetry-Adapted Fourier Series for the Wallpaper Groups. Symmetry 2012, 4, 379-426.
Verberck B. Symmetry-Adapted Fourier Series for the Wallpaper Groups. Symmetry. 2012; 4(3):379-426.Chicago/Turabian Style
Verberck, Bart. 2012. "Symmetry-Adapted Fourier Series for the Wallpaper Groups." Symmetry 4, no. 3: 379-426.