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earned this badge 7 times.
Can the sum of two roots of unity be a root of unity?
Awarded Feb 6, 2022 at 12:10
Is $O_n({\bf Q})$ dense in $O_n({\bf R})$?
Awarded Jan 16, 2021 at 23:10
Results true in a dimension and false for higher dimensions
Awarded Nov 3, 2014 at 14:50
Is there an infinite group with exactly two conjugacy classes?
Awarded Nov 5, 2013 at 11:59
Fixed point theorems
Awarded Jun 27, 2013 at 13:31
Over which fields are symmetric matrices diagonalizable ?
Awarded May 28, 2013 at 2:20
(post deleted or otherwise unavailable)
Awarded Apr 10, 2013 at 6:05

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