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CNS709's user avatar
CNS709
  • Member for 4 years
  • Last seen more than a week ago
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3
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18
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14
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Top posts
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All Questions Answers
Score Newest
answer
22
Short exact sequences every mathematician should know
Mar 22, 2021
question
15
Calculation of $H^{10}(K(\mathbb{Z}, 3); \mathbb{Z})$
Jan 3, 2020
question
13
Explicit isomorphism $\pi_{n+1}(\mathbb{RP}^n) \cong \pi_1(\mathbb{RP}^{n-1})$
Oct 16, 2019
question
13
Homotopic classification of maps $M \to \mathbb{RP}^n$ where $M$ is a compact orientable $n$-dimensional manifold
Nov 17, 2019
question
13
Goodwillie derivatives of $X \mapsto \Sigma^\infty X^{\wedge n}/\Sigma_n$
Nov 10, 2020
question
10
$\pi_{2p^kn - 1}(P^{2n+1}(p^r))$ contains a $\mathbb{Z}_{p^{r+1}}$ summand
Nov 29, 2020
question
8
It is possible that $ X \simeq ΩX $? and that $ X \simeq Ω^ 2X $?
Sep 3, 2020
question
8
3-primary part of $\pi_\bullet S^3$
Oct 22, 2020
question
7
Can every functor $F: \bf{Vect} \to \bf{Top}$ be lifted to a functor $\tilde F: \bf{VectBun} \to \bf{Bun}$? And if $F: \bf{Vect} \to \bf{Man}$?
Dec 3, 2019
question
7
Calculation of $\pi_3^s$ via killing spaces and Steenrod squares
May 10, 2020
Top network posts
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11
Why do we care only about canonical transformations?
10
Electric field and curvature
9
The gauss map $ N$ is surjective if the surface is compact
7
Center of a non-abelian subgroup of $GL(2, \mathbb{C})$
7
Compute fundamental group _visually_ by the polygonal representation of the space

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