Moment isotropy and discrete rotational symmetry of two-dimensional lattice vectors.
نویسندگان
چکیده
We present a direct proof of a theorem linking the order of moment isotropy and degree of discrete rotational symmetry for a two-dimensional set of lattice vectors. This theorem has been proved previously based on properties of sinusoidal functions. The new proof is based instead on purely linear algebraic arguments.
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عنوان ژورنال:
- Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
دوره 369 1944 شماره
صفحات -
تاریخ انتشار 2011