Mathematics
Kenta S's user avatar
Kenta S's user avatar
Kenta S's user avatar
Kenta S
  • Member for 6 years, 2 months
  • Last seen this week
  • Tokyo, Japan
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I enjoy math.

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All Questions Answers
Score Newest
answer
24
Cannot become ring because distribution law does not hold
Mar 21, 2022
question
21
Is every group the unit group of some ring?
Sep 24, 2019
answer
18
An IMO 1984 longlisted problem
Oct 5, 2022
answer
10
Evaluate $\displaystyle\int\limits_{-2}^{2}\frac{x^{4}}{1+6^{x}}dx$
May 20, 2020
question
10
Morphisms to products and morphisms from coproducts
Dec 23, 2021
question
9
Is $\mathrm{Gal}(\overline{\mathbb Q}/\mathbb Q)\cong\mathrm{Spec}(\overline{\mathbb Q}\otimes\overline{\mathbb Q})$ a group scheme
Aug 22, 2022
question
8
Strengthening Ax-Grothendieck
Oct 31, 2022
answer
8
Show that $M[x] \cong A[x] \otimes_{A} M.$
Feb 7, 2019
answer
8
Let $ f: \mathbb R \longrightarrow \mathbb R$ be $\mathcal C^\infty$ with $ f'(x) = f(1-x)$ for all $x$. Given $ f(0)=1$. Find $ f(1)$.
Aug 18, 2020
answer
8
What is the Prime at Infinity?
Aug 27, 2022
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18
Strengthening Ax-Grothendieck
5
Abelianization of the inertia group

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