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SUMMARY:Regular Irrational Subdivisions and Common Refinements - Nick Wins
 tone (Royal Holloway
DTSTART:20190626T133000Z
DTEND:20190626T140000Z
UID:TALK126166@talks.cam.ac.uk
CONTACT:Christopher Brookes
DESCRIPTION:Elements of Thompsons group F can be defined as an affine inte
 rpolation of regular subdivisions of the unit interval. We define regular 
 subdivisions associated with subdivision polynomials and determine which r
 egular subdivisions can be used to create the elements of the groups Fτ w
 ith τ an algebraic integer. By adapting the work of S. Cleary and J. Brow
 n\, we find that for degree 2\, the subdivision polynomials must be Pisot 
 polynomials.
LOCATION:MR12
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