Speaker: SUN Fang
Time: Aug 16, 2017, 16:10-17:10
Location: Conference Room 415, Wisdom Valley 3#
It has been shown that smooth orientation preserving actions on R^4 by finite groups need not be smoothly conjugate to orthogonal ones. Yet such group (assuming faithfulness) is always isomorphic to a subgroup of SO(4). We showed that analogous algebraic rigidity holds for topological actions on R^3，despite a similar lack of geometric rigidity.
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