User Fan Zheng

31 votes

1 answer

2k views

$f'=e^{f^{-1}}$, again

asked Jan 2, 2017 at 22:03

16 votes

1 answer

2k views

Ways to help a math PhD out of depression [closed]

asked Feb 22, 2019 at 4:59

16 votes

1 answer

1k views

On (a generalization of) the Gauss Circle Problem

asked Dec 29, 2015 at 20:34

13 votes

1 answer

676 views

Two Vinogradovs? Is one the son of the other? [closed]

asked Oct 31, 2015 at 1:11

12 votes

2 answers

846 views

When is the closed unit ball in a smaller Banach space closed in a larger Banach space?

asked Nov 22, 2015 at 7:30

11 votes

2 answers

3k views

What's wrong with the Courant nodal domain theorem?

asked Nov 28, 2013 at 16:14

9 votes

3 answers

375 views

Decay of real continuous algebraic functions at infinity

asked Dec 15, 2015 at 17:57

9 votes

1 answer

912 views

The Fourier transform of a function supported on $B_1$ is essentially constant on $B_1$?

asked Mar 2, 2016 at 23:09

8 votes

1 answer

382 views

Solutions of a Diophantine equation with large common divisors

asked Dec 2, 2019 at 17:51

8 votes

1 answer

843 views

Lattice points near a curve

asked Jan 26, 2016 at 0:10

8 votes

1 answer

739 views

Average of Fourier coefficients of a cusp form of half integral weight

asked Jul 14, 2013 at 20:55

8 votes

2 answers

2k views

Nash's proof of De Giorgi-Nash-Moser theorem

asked Apr 19, 2015 at 5:47

8 votes

1 answer

2k views

Cricket and the Hardy-Littlewod maximal function

asked Mar 18, 2015 at 22:40

8 votes

2 answers

403 views

Root criterion for polynomial over number fields

asked Mar 22, 2015 at 18:44

7 votes

3 answers

581 views

Uniform bounds on the number of integer points on a family of elliptic curves

asked Feb 10, 2016 at 1:53

6 votes

1 answer

338 views

Check irreducibility of an explicit polynomial, without computer

asked Feb 26, 2017 at 19:25

6 votes

1 answer

838 views

UFD and fundamental group

asked Mar 26, 2015 at 1:11

6 votes

3 answers

726 views

Ascending chain condition on radical ideals

asked Mar 2, 2015 at 21:08

5 votes

2 answers

324 views

Variational formulation of second order equations of the divergence form

asked Feb 5, 2015 at 21:45

5 votes

1 answer

758 views

Does pointwise convergence of holomorphic functions on the boundary imply pointwise convergence in the interior?

asked Feb 8, 2015 at 19:12

5 votes

1 answer

273 views

Natural explanation for a matrix identity

asked Oct 11, 2017 at 5:16

5 votes

1 answer

658 views

Structure sheaf of affine variety consists of noetherian rings (again)

asked Apr 7, 2016 at 19:26

5 votes

0 answers

130 views

Chapter X, Section 2, Proposition 1 of Stein's harmonic analysis

asked Nov 20, 2018 at 7:22

4 votes

1 answer

331 views

Counting integral points on a surface

asked Nov 4, 2016 at 19:36

4 votes

1 answer

443 views

Galois group and invariant polynomials

asked Jan 25, 2017 at 19:13

4 votes

1 answer

357 views

Mixed norm estimate for the heat equation

asked Sep 19, 2015 at 11:40

4 votes

1 answer

289 views

Is there a name for this space?

asked Apr 12, 2015 at 4:14

3 votes

1 answer

2k views

Completion of a finite field extension is also finite?

asked Sep 28, 2015 at 0:36

3 votes

1 answer

485 views

Lemma 2.11 of Tao's Nonlinear Dispersive Equations

asked Apr 7, 2015 at 3:56

2 votes

1 answer

816 views

Decoupling in mixed norm spaces

asked Jan 29, 2016 at 20:52

Stack Exchange Network

35 Questions

$f'=e^{f^{-1}}$, again

Ways to help a math PhD out of depression [closed]

On (a generalization of) the Gauss Circle Problem

Two Vinogradovs? Is one the son of the other? [closed]

When is the closed unit ball in a smaller Banach space closed in a larger Banach space?

What's wrong with the Courant nodal domain theorem?

Decay of real continuous algebraic functions at infinity

The Fourier transform of a function supported on $B_1$ is essentially constant on $B_1$?

Solutions of a Diophantine equation with large common divisors

Lattice points near a curve

Average of Fourier coefficients of a cusp form of half integral weight

Nash's proof of De Giorgi-Nash-Moser theorem

Cricket and the Hardy-Littlewod maximal function

Root criterion for polynomial over number fields

Uniform bounds on the number of integer points on a family of elliptic curves

Check irreducibility of an explicit polynomial, without computer

UFD and fundamental group

Ascending chain condition on radical ideals

Variational formulation of second order equations of the divergence form

Does pointwise convergence of holomorphic functions on the boundary imply pointwise convergence in the interior?

Natural explanation for a matrix identity

Structure sheaf of affine variety consists of noetherian rings (again)

Chapter X, Section 2, Proposition 1 of Stein's harmonic analysis

Counting integral points on a surface

Galois group and invariant polynomials

Mixed norm estimate for the heat equation

Is there a name for this space?

Completion of a finite field extension is also finite?

Lemma 2.11 of Tao's Nonlinear Dispersive Equations

Decoupling in mixed norm spaces