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tkf
  • Member for 8 years, 5 months
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36
Are all finite-dimensional algebras of a fixed dimension over a field isomorphic to one another?
15
$6!\cdot 7!=10!$. Is there a natural bijection between $S_6\times S_7$ and $S_{10}$?
10
Is it possible to tile a $13 \times 13$ board with $4 \times 1$ dominoes such that the center square is left untiled?
10
Normal subgroup of a characteristic subgroup
9
What is $\pi_3(S^2\times S^1)$?
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