User Alexey Do

7 votes

1 answer

1k views

Understanding suspension isomorphism

asked Nov 19, 2018 at 12:59

7 votes

0 answers

216 views

Deligne category $\underline{\mathrm{Rep}}(GL_t)$ is abelian

asked Aug 18, 2021 at 13:21

6 votes

2 answers

424 views

Computing the Galois group of the extension $\mathbb{C}(x,y)/\mathbb{C}(x^a y^b, x^c y^d)$

asked Apr 18, 2020 at 10:26

6 votes

1 answer

441 views

Understanding the statement and the proof of Bertini's theorem in Griffiths and Harris

asked Aug 15, 2020 at 13:40

4 votes

1 answer

974 views

Starting point for learning etale cohomology

asked Oct 20, 2020 at 16:16

4 votes

1 answer

635 views

Understanding a short exact sequence of sheaves associated to a divisor

asked Aug 2, 2020 at 12:25

4 votes

0 answers

376 views

Krull dimension of polynomial rings over Noetherian rings via homological methods

asked May 27, 2019 at 17:20

4 votes

0 answers

144 views

Regular singular points on curves

asked Oct 28, 2021 at 14:32

3 votes

2 answers

570 views

Every automorphism preserves a Cartan subalgebra is induced by an element in the Weyl group

asked Nov 2, 2021 at 15:09

3 votes

0 answers

168 views

Locally trivial bundle with fiber $O(n-1)$

asked Feb 18, 2018 at 6:17

3 votes

1 answer

169 views

On algebraic minimal surfaces

asked Apr 28, 2020 at 5:28

2 votes

0 answers

170 views

Understanding the construction of the Euler class

asked Apr 3, 2020 at 3:45

2 votes

0 answers

126 views

Reference for modern treatment of computing homology of Eilenberg-MacLane spaces by the bar construction

asked Nov 23, 2020 at 11:20

2 votes

1 answer

106 views

Compact generators of $D^b_c(X)$

asked Aug 30, 2023 at 14:44

2 votes

0 answers

54 views

Constructibility of étale sheaves in cohomological dimension

asked Sep 14, 2023 at 11:30

2 votes

0 answers

112 views

Understanding a lemma in Milne's etale cohomology

asked Sep 15, 2023 at 9:16

1 vote

1 answer

685 views

On the definition of a simple normal crossing divisor

asked Feb 5, 2023 at 15:28

1 vote

0 answers

48 views

Transversality of strict transforms

asked Jan 19 at 13:24

1 vote

1 answer

735 views

Algebraic varieties being geometrically irreducible

asked Jan 29, 2021 at 12:08

1 vote

0 answers

167 views

$T(M \oplus N) = T(M) \otimes T(N) \otimes T(M) \otimes T(N)...$

asked Mar 1, 2021 at 11:16

1 vote

0 answers

133 views

A criterion to be a rigid tensor category

asked Aug 14, 2021 at 14:31

1 vote

0 answers

107 views

The category of Chow correspondences

asked Jan 20, 2022 at 20:07

1 vote

0 answers

139 views

Normalization of toric varieties

asked Jan 28, 2022 at 13:03

1 vote

0 answers

55 views

$K(G,n) \otimes K(G',n) \to K(G \times G',n)$

asked Oct 27, 2020 at 9:53

1 vote

1 answer

205 views

Zero locus of analytic function as finite-sheeted cover

asked Jul 27, 2020 at 14:36

1 vote

1 answer

315 views

Orthogonal complement of a vector bundle over paracompact base

asked Mar 23, 2018 at 16:03

1 vote

2 answers

332 views

Burgers equations with piecewise initial data

asked Sep 26, 2019 at 11:47

1 vote

1 answer

33 views

Element of exhaustion being connected

asked Dec 1, 2019 at 12:31

1 vote

1 answer

278 views

Homotopy groups $\pi_{n+1}(S^{n})$

asked Nov 25, 2018 at 4:38

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39 Questions

Understanding suspension isomorphism

Deligne category $\underline{\mathrm{Rep}}(GL_t)$ is abelian

Computing the Galois group of the extension $\mathbb{C}(x,y)/\mathbb{C}(x^a y^b, x^c y^d)$

Understanding the statement and the proof of Bertini's theorem in Griffiths and Harris

Starting point for learning etale cohomology

Understanding a short exact sequence of sheaves associated to a divisor

Recommended books for reading the Euler characteristic class

Krull dimension of polynomial rings over Noetherian rings via homological methods

Regular singular points on curves

Every automorphism preserves a Cartan subalgebra is induced by an element in the Weyl group

Locally trivial bundle with fiber $O(n-1)$

On algebraic minimal surfaces

Understanding the construction of the Euler class

Reference for modern treatment of computing homology of Eilenberg-MacLane spaces by the bar construction

Compact generators of $D^b_c(X)$

Constructibility of étale sheaves in cohomological dimension

Understanding a lemma in Milne's etale cohomology

On the definition of a simple normal crossing divisor

Transversality of strict transforms

Algebraic varieties being geometrically irreducible

$T(M \oplus N) = T(M) \otimes T(N) \otimes T(M) \otimes T(N)...$

A criterion to be a rigid tensor category

The category of Chow correspondences

Normalization of toric varieties

$K(G,n) \otimes K(G',n) \to K(G \times G',n)$

Zero locus of analytic function as finite-sheeted cover

Orthogonal complement of a vector bundle over paracompact base

Burgers equations with piecewise initial data

Element of exhaustion being connected

Homotopy groups $\pi_{n+1}(S^{n})$