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Mathematics
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Mahtab's user avatar
Mahtab's user avatar
Mahtab
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6
How many groups $G_i$ (up to isomorphism) are there such that $G\cong G_i \times \mathbb{Z}$?
Aug 19, 2023
6
Autocommutator subgroup is a characteristic subgroup
Jan 11
4
An example of a weakly Hopfian group which is not Hopfian
Jun 8, 2023
2
If $H$ is a proper retract of $G$ of finite homological type, then $\chi (H)\lneq \chi(G)$?
May 20, 2023
2
A question on geometric quantization
Jun 3
2
About surjectivity of $V\cong (V^*)^*$
May 20
2
The adjoint of a map
Aug 19, 2023
2
A reference for the definition of a minimal polynomial when ring is noncommutative
May 8
2
Definitions of polynomials $F(x):=f(x+c)$ and $G(x):=f(cx)$ if $c\in Z(R)$
Apr 4
2
The order of center of any non-abelian $p$-group of order $p^n$
Apr 19