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Marktmeister
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Top posts
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question
6
When can a representation of a finite group be defined over certain cyclotomic fields?
Feb 2, 2022
answer
6
Prove the order of finite simple group is not perfect and even number.
Mar 22, 2020
answer
6
Im $𝑇=$Im $𝑇^2⟹ \ker𝑇=\ker𝑇^2$
Mar 25, 2020
answer
6
Counter example for a matrix $A^3=A$ but $\mbox{rank}(A) \neq \mbox{tr}(A^2)$
Jun 15, 2020
answer
5
$\sum_{n=1}^\infty \frac{(2n+1)!}{2^{2n}(n!)^2}$ converges?
Jan 29, 2021
answer
5
Why is there no field with one element?
Dec 6, 2020
question
4
Groups of order $252 = 4 \cdot 7 \cdot 9$ are solvable
Aug 5, 2020
question
4
Function field over a perfect field can be generated by two elements
Apr 2
answer
4
"Continuity of determinant"
Dec 5, 2020
answer
4
Is the set of all polynomials of degree $3$ not a vector space?
May 12, 2020
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Can I write a referee report too fast?