holroyd at math.ubc.ca
Tue Jul 5 21:39:09 UTC 2011
These symmetry issues are indeed most intriguing...
On Tue, 5 Jul 2011, Matthew Frye wrote:
> On 5 Jul 2011, at 22:07, Alexander Holroyd wrote:
> Further questions: is a similar construction possible in the presence of
> other symmetries? I think we've already ruled most out, but glide
> symmetry perhaps? What about no symmetry other than translational?
Really? You mean you can prove that ordinary (palindromic) symmetry is
impossible, for example?
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