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Abstract:
When a group has a finite generating set,
this set can be used to define the distance
between group elements, forming a metric
space. To understand a picture of this space,
it is useful to be able to draw the ball
of any radius centered at the identity
element of the group. For many groups,
this ball is not a convex subset of the
group. In this talk, I'll discuss groups
for which any ball about the identity is
almost convex.
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