Characterization of coincidence site lattices of oblique planar lattices
Coincidence site lattices of oblique planar lattices are algebraically characterized using as basic tool the Cartan-Dieudonné theorem, that is, the decomposition of an orthogonal transformation as a product of reflections. The case of rectangular lattices is worked out in detail. We use the rectangular lattices for obtain the characterization of the corresponding obliques.
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