Saturday, April 21, 2012

Colour symmetry. Portuguese tiles: Homero Gonçalves - p2 - «p2»



Colour symmetry in the same pattern. Yellow lines are the border of a fundamental region. 2(12) and 2i mean rotations of order 2. (12) means that the colours white and brown are interchanged; i means the identity.

This is an example of the case stated in the  third row of the table in Section 4.1 (Figure 11, «p2») in
Imagens copiadas da página 27 de

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