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Figure 2.16:
Cook's A-gliders and the de Bruijn diagram from which they may be derived. The outer periphery corresponds to the period-7, cycle 14 period rectangle of the ether tiles. If T3's and T1's alternate, there are three phases each of which has a cycle of length of 6. Also, if pure T1's run in succession, there is a loop of length 4 which will geberate them. Other mixtures correspond to other paths through the diagram.
![\begin{figure}\centering\begin{picture}(180,100)
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...put(0,-20){\epsfxsize = 260pt \epsffile{db2in3.eps}}
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\end{figure}](img77.gif) |
Jose Manuel Gomez Soto
2002-01-31