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Aug 31, 2010 at 14:02 vote accept Mark Bell
Aug 4, 2010 at 15:13 answer added Gerald Edgar timeline score: 0
Jul 27, 2010 at 10:03 answer added Lasse Rempe timeline score: 1
Jul 18, 2010 at 18:40 comment added Mark Bell Ah - although it might not be obvious at first, $\psi_1$ and $\psi_2$ were chosen such that $\psi_1 \circ \psi_2 = \phi_1$, $\psi_1 \circ \psi_1 = \phi_2$, $\psi_2 \circ \psi_2 = \phi_3$ and $\psi_2 \circ \psi_1 = \phi_4$. But is dont think this process will generalise well.
Jul 18, 2010 at 9:41 comment added Victor Protsak Can you, please, comment on what makes the $\psi$ IFS work? What is the relation between the semigroups generated by $\phi$ and $\psi$?
Jul 18, 2010 at 0:53 history edited Yemon Choi CC BY-SA 2.5
fixed some spelling and added a tag
Jul 17, 2010 at 22:47 history asked Mark Bell CC BY-SA 2.5