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SUMMARY:The Word Norm - Cong Chen\, Leeds
DTSTART:20140415T140000Z
DTEND:20140415T150000Z
UID:TALK51873@talks.cam.ac.uk
CONTACT:Zach McKenzie
DESCRIPTION:The word norm for any element of a group\, given a symmetric g
 enerating set\, is the length of the shortest representation of that eleme
 nt as a word in the generators. It may also be thought of as the graph nor
 m on the Cayley graph. A quasimorphism from a group G to a normed group (u
 sually the Reals) is a map f such \nd(f(x)f(y)\,f(xy)) is absolutely bound
 ed. I will discuss some folklore connecting these combinatorial and geomet
 ric ideas.\n
LOCATION:CMS\, MR12
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