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Arshak Aivazian's user avatar
Arshak Aivazian's user avatar
Arshak Aivazian's user avatar
Arshak Aivazian
  • Member for 3 years, 11 months
  • Last seen more than a week ago
  • Russia, Saint Petersburg
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Student of St. Petersburg State University MCS (Chebyshev laboratory)

[email protected]
https://t.me/arcsi
https://vk.com/arcsi

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43
Do rings of smooth functions differ from rings of continuous functions?
41
Is there a smallest group containing all finite groups?
24
Spheres with the same homotopy groups
19
Why is $1$ not a dense sub-site in a group with the trivial Grothendieck topology?
18
Does there exist a compact submanifold of $\mathbb{R}^3$ whose fundamental group is $\mathbb{Z}^3$?

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