User Zhiyu

7 votes

1 answer

433 views

Is $\operatorname{dim} H^1$ of an abelian variety the same for any Weil cohomology?

asked Apr 18, 2019 at 17:25

7 votes

3 answers

552 views

Endomorphism ring of $J_0(p)$ and Hecke operators

asked Feb 12, 2019 at 0:11

7 votes

1 answer

1k views

Irreducible representation of the product of two groups and tensor product

asked Aug 31, 2018 at 20:10

7 votes

1 answer

544 views

Classification of smooth algebraic surfaces with a smooth morphism to $\Bbb P^1$

asked Oct 15, 2018 at 17:29

7 votes

0 answers

261 views

Invariant lattices of group representations over a $p$-adic field

asked Oct 17, 2018 at 22:23

7 votes

0 answers

107 views

Langlands correspondence of coverings of $\mathrm{SL}_2(\mathbb R)$ and modular forms with fractional weights

asked Dec 11 at 22:31

6 votes

0 answers

295 views

Writing rational number as $\frac{a^k+b^k}{c^k+d^k}$

asked Jan 11, 2020 at 4:07

6 votes

0 answers

342 views

How to decide whether the isogeny between Neron models is etale?

asked Feb 22, 2019 at 18:23

6 votes

0 answers

233 views

Morphism that is surjective on PID points is surjective on every Dedekind domain?

asked Nov 13, 2018 at 22:52

6 votes

1 answer

408 views

Existence of isomorphism mod every power of the maximal ideal

asked Dec 21, 2018 at 20:40

6 votes

1 answer

524 views

How to compute Galois representations from etale cohomology groups of a generalized flag variety?

asked Jan 13, 2019 at 4:22

6 votes

0 answers

266 views

Classification of one dimensional (non-commutative) formal group laws over $k[\epsilon]/(\epsilon^n)$

asked Sep 4, 2019 at 19:45

6 votes

0 answers

182 views

Čech-to-cohomology spectral sequence for fppf cohomology of $\mathbb G_m$

asked May 10, 2019 at 17:49

6 votes

1 answer

176 views

Construction of non-split extension of simple modules of Lie algebras using linear differential operators

asked Feb 25, 2019 at 21:28

6 votes

1 answer

368 views

Indecomposable objects in bounded derived category of $\mathbb C[x]/x^2$-mod

asked Dec 8, 2019 at 5:43

5 votes

1 answer

224 views

Condition for two surfaces to not live inside a common threefold

asked Oct 6, 2019 at 16:13

5 votes

2 answers

250 views

What integer value can be the conductor of a $g$-dimensional abelian variety over $\mathbb Q$?

asked Feb 26, 2019 at 2:14

5 votes

1 answer

491 views

(Higher) extensions of mixed Hodge structures

asked Jun 24, 2019 at 14:25

5 votes

1 answer

653 views

rank of Jacobian of Fermat curve and Chabauty-Coleman method

asked Feb 13, 2019 at 22:55

5 votes

0 answers

189 views

When is the graph of a morphism between smooth projective varieties nef?

asked May 5, 2019 at 4:41

5 votes

0 answers

142 views

Cohen-Macaulay local ring and its quotient by minimal prime ideal

asked Oct 6, 2018 at 20:56

5 votes

1 answer

472 views

p-torsion in Picard group of simply-connected variety of char p

asked Jul 22, 2018 at 7:07

5 votes

1 answer

261 views

Central isogeny, Shimura varieties and exceptional cases

asked Nov 22 at 8:58

5 votes

0 answers

179 views

Deformations of cotangent bundles

asked Nov 23 at 23:44

5 votes

0 answers

341 views

Reduction type of elliptic curves over $p$-adic fields and local Langlands correspondence for $GL_2(F)$

asked Apr 10, 2020 at 3:04

5 votes

1 answer

232 views

Explicit Jacquet-Langlands correspondence for real reductive groups

asked Dec 7 at 3:02

4 votes

0 answers

81 views

Classification of nilpotent orbits over local fields (for type ABCD via partitions )

asked Nov 24 at 12:10

4 votes

0 answers

87 views

Levis, parabolics and Bruhat-Tits over Henselian local rings

asked Dec 3 at 5:25

4 votes

1 answer

188 views

Norm in an order of a number field and Hilbert polynomial

asked Oct 24, 2017 at 5:16

4 votes

0 answers

206 views

Higher dimensional generalization of an identity between traces of Hecke operators and number of elliptic curves over finite fields?

asked May 8, 2019 at 4:34

Stack Exchange Network

96 Questions

Is $\operatorname{dim} H^1$ of an abelian variety the same for any Weil cohomology?

Endomorphism ring of $J_0(p)$ and Hecke operators

Irreducible representation of the product of two groups and tensor product

Classification of smooth algebraic surfaces with a smooth morphism to $\Bbb P^1$

Invariant lattices of group representations over a $p$-adic field

Langlands correspondence of coverings of $\mathrm{SL}_2(\mathbb R)$ and modular forms with fractional weights

Writing rational number as $\frac{a^k+b^k}{c^k+d^k}$

How to decide whether the isogeny between Neron models is etale?

Morphism that is surjective on PID points is surjective on every Dedekind domain?

Existence of isomorphism mod every power of the maximal ideal

How to compute Galois representations from etale cohomology groups of a generalized flag variety?

Classification of one dimensional (non-commutative) formal group laws over $k[\epsilon]/(\epsilon^n)$

Čech-to-cohomology spectral sequence for fppf cohomology of $\mathbb G_m$

Construction of non-split extension of simple modules of Lie algebras using linear differential operators

Indecomposable objects in bounded derived category of $\mathbb C[x]/x^2$-mod

Condition for two surfaces to not live inside a common threefold

What integer value can be the conductor of a $g$-dimensional abelian variety over $\mathbb Q$?

(Higher) extensions of mixed Hodge structures

rank of Jacobian of Fermat curve and Chabauty-Coleman method

When is the graph of a morphism between smooth projective varieties nef?

Cohen-Macaulay local ring and its quotient by minimal prime ideal

p-torsion in Picard group of simply-connected variety of char p

Central isogeny, Shimura varieties and exceptional cases

Deformations of cotangent bundles

Reduction type of elliptic curves over $p$-adic fields and local Langlands correspondence for $GL_2(F)$

Explicit Jacquet-Langlands correspondence for real reductive groups

Classification of nilpotent orbits over local fields (for type ABCD via partitions )

Levis, parabolics and Bruhat-Tits over Henselian local rings

Norm in an order of a number field and Hilbert polynomial

Higher dimensional generalization of an identity between traces of Hecke operators and number of elliptic curves over finite fields?