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Mathematics
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ABC
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I am a Mathematics student.

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4
Is ${\rm Core}_G(H) \leqslant C_G(A)$?
Nov 17, 2021
4
Find the Closed form of $\sum_{i=0}^k {{2k+2}\choose{i}} (2k)^i$
Oct 31, 2021
4
Ring isomorphism between $\mathbb{Q}(\sqrt{2})$ and $\mathbb{Q}(i)$
Apr 10, 2021
3
Is there a subgroup $H \leq G$ such that $C_G(N) \cong H \times N $?
Nov 18, 2021
3
Evaluating $\iint_{[0,1]^2} \frac{2-4xy}{(9-xy)(8+xy)}dxdy$
Apr 30, 2020
3
Find $p(x)\in \mathbb{K}(\alpha)[x]$ of degree 2 such that $p(\beta)=0$
Jun 6, 2021
3
Compute $\int_{-\infty}^{\infty}\frac{x\sin(\pi x)}{(x-3)(x-2)}dx$ using residue thoerem
Jan 27, 2021
3
Has this equation $\prod_{n=1}^{\infty}(1-\frac{z}{n^a})e^{\frac{z}{n^a}+\frac{z^2}{2n^{2a}}}=a.$ solutions?
Jan 28, 2021
2
Tiling of a tree to show that a group acting freely on a tree is free
Jun 7
2
If two integer matrices $A$ and $B$ have the same row space, $A=UB$ for some unimodular matrix $U$?
Aug 19, 2023