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Feb 17, 2011 at 21:16 vote accept Beren Sanders
Oct 8, 2010 at 12:14 comment added Lennart Meier @Thierry: in which way are they computable? Is there an algorithm (in some sense) which produces out of a given set of equations a CW-structure?
Oct 8, 2010 at 11:15 comment added Sean Tilson I think the OP might even mean tractable in a computational way. Glad people mentioned $\pi^S_0$.
Oct 7, 2010 at 12:33 comment added Thierry Zell Re (2): such CW-structures are computable. Of course this is not an easy computation. But "computable" and "tractable" are very different animals.
Oct 7, 2010 at 8:37 history answered Lennart Meier CC BY-SA 2.5