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Mathematics
14159's user avatar
14159's user avatar
14159's user avatar
14159
  • Member for 5 years, 9 months
  • Last seen this week
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14
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5
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11
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2
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7
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1
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20
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1
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5
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11
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3
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7
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All Questions Answers
Score Newest
question
5
If $M=\bigoplus_{i\in I}M_i$ and $f:M\to M$ is idempotent then $f$ induces an isomorphism between $M_i$ and $f(M_i)$.
May 16, 2022
question
4
'Cross product' for 3 vectors in 4D
Nov 13, 2017
question
4
Example where $(X,Y)$ and $(X,Z)$ have the homotopy extension property, but $(Y,Z)$ doesn't
Feb 1
question
4
Number of homotopy classes of maps $X\to Y$ of CW-complexes
Jan 29
question
4
Prove that $\mathbb{Q}(\sqrt{2},\sqrt[3]{3})=\mathbb{Q}(\sqrt{2}\sqrt[3]{3})=\mathbb{Q}(\sqrt{2}+\sqrt[3]{3})$
Mar 4, 2021
question
4
Help in understanding a proof that $\mathbb{Q}_p^a$ is not complete
Jun 12, 2021
question
3
Center of group ring is generated by characters
Oct 20, 2021
question
2
Condition for partial maps being representable [closed]
Mar 30
question
2
Factorizing Polynomial in a Quotient Ring
Nov 27, 2020
question
2
Minimal polynomial of $x$ over $\mathbb{Q}(x+y+z, x^2+y^2+z^2, x^3+y^3+z^3)$
Mar 19, 2021

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