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Mathematics
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shwsq
  • Member for 1 year, 6 months
  • Last seen this week
  • China Shanghai
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I am an undergraduate student.

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Top posts

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question
6
$C^n[0,1]\simeq C^m[0,1]$ as Banach algebras if and only if $m=n$
Nov 22, 2024
question
5
Any direct method to show that $\mathbb{Q}[\sqrt{2}, \sqrt{3}, \sqrt{5}]=\mathbb{Q}[\sqrt{2}+\sqrt{3}+\sqrt{5}]$?
Jun 12, 2024
question
5
What's the meaning of $\operatorname{mod}(1+p^n\mathbb Z_p)$?
May 3
question
4
Proof of Orthonormal basis for $L_2(\mathbb R)$ by Hermite Polynomials
Oct 26, 2024
question
4
Prove that $tr(T)=\sum _{\lambda \in \sigma_p(T)}\lambda \dim E_\lambda$
Dec 11, 2024
question
3
The condition of compactness of subgroup of infinite Galois group
Jun 11, 2024
question
3
Fixed point theorem on an open ball in complete metric space
Sep 19, 2024
question
3
Weibel Exercise 8.4.3 $KC$ left adjoint to the forgetful functor $U:\mathcal{SA}\to \mathcal A^{\Delta_s^{op}}$
May 25
question
3
What's the relation of a semidirect product and the original map?
May 6
question
3
$D_1, D_2$ are division rings, prove that if $M_r(D_1)$ is isomorphic to $M_s(D_2)$, then $D_1 \cong D_2$ and $r=s$
Nov 17, 2024