User dhy

35 votes

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IMO 2017/6 via arithmetic geometry

answered Jul 25, 2017 at 20:37

33 votes

The most outrageous (or ridiculous) conjectures in mathematics

answered Jan 19, 2017 at 4:51

22 votes

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Which hypersurfaces in $\mathbb{P}^n$ are abelian varieties?

answered Feb 27, 2016 at 4:30

21 votes

Short exact sequences every mathematician should know

answered Jun 21, 2020 at 19:07

14 votes

Regarding the irreducibility of certain varieties

answered Sep 5, 2018 at 23:09

14 votes

What exact number of domino tilings cannot be realizable?

answered Aug 8, 2014 at 12:14

13 votes

Alice and Bob playing on a circle

answered Apr 22, 2018 at 20:18

13 votes

Examples of conjectures that were widely believed to be true but later proved false

answered Jul 27, 2018 at 15:46

12 votes

What heuristic evidence is there concerning the unboundedness or boundedness of Mordell-Weil ranks of elliptic curves over $\Bbb Q$?

answered Feb 8, 2018 at 2:04

11 votes

Accepted

How to see that the determinant of this matrix is nonzero for all primes?

answered Feb 15, 2021 at 15:42

11 votes

Beilinson-Drinfeld local geometric class field theory

answered Apr 6, 2022 at 5:30

10 votes

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Points on affine hypersurface over finite field

answered Aug 18, 2023 at 6:57

10 votes

Why do we care about $(\infty,2)$-categories?

answered Aug 13, 2021 at 2:29

9 votes

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Simple question about polynomials

answered Jan 4, 2018 at 16:07

9 votes

What are advantages of chiral algebras over vertex algebras?

answered Mar 2, 2018 at 22:42

8 votes

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Application of toric varieties for problems that do not mention them

answered Mar 5, 2017 at 22:21

8 votes

How should I think about the Grothendieck-Springer alteration?

answered Nov 3, 2018 at 20:06

8 votes

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Ideal of the boundary of $G/U \subset \overline{G/U}$

answered Aug 15, 2020 at 19:39

8 votes

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Remark 2.4.1.4 Higher Topos Theory

answered Dec 27, 2018 at 18:08

7 votes

Why should affine lie algebras and quantum groups have equivalent representation theories?

answered Aug 28, 2018 at 19:14

7 votes

If I exchange infinitely many digits of $\pi$ and $e$, are the two resulting numbers transcendental?

answered Mar 25, 2017 at 18:28

6 votes

Universal enveloping algebra and the algebra of invariant differential operators

answered Apr 4, 2018 at 15:31

6 votes

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$K_0$-equivalence of varieties

answered Nov 25, 2017 at 23:42

6 votes

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Conceptual explanation for curious linear-algebra fact in characteristic $2$

answered Dec 12, 2018 at 23:44

6 votes

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A basis of holomorphic differentials on Fermat curves

answered May 31, 2021 at 20:33

6 votes

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Relation between flatness and integrability of an algebraic connection

answered Jan 29, 2021 at 22:50

5 votes

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Current progress on rationality problem for complex hypersurfaces

answered Dec 28, 2022 at 0:29

5 votes

Thomason-Trobaugh Theorem

answered Jun 24, 2018 at 7:51

5 votes

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Holomorphic vector bundles over a Riemann surface does not satisfy $\mathbf{AB2}$ but satisfies $\mathbf{AB1}$

answered May 30, 2014 at 5:47

4 votes

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Do the following two filtrations of the affine Grassmannian agree?

answered Jan 24, 2015 at 14:14

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43 Answers

IMO 2017/6 via arithmetic geometry

The most outrageous (or ridiculous) conjectures in mathematics

Which hypersurfaces in $\mathbb{P}^n$ are abelian varieties?

Short exact sequences every mathematician should know

Regarding the irreducibility of certain varieties

What exact number of domino tilings cannot be realizable?

Alice and Bob playing on a circle

Examples of conjectures that were widely believed to be true but later proved false

What heuristic evidence is there concerning the unboundedness or boundedness of Mordell-Weil ranks of elliptic curves over $\Bbb Q$?

How to see that the determinant of this matrix is nonzero for all primes?

Beilinson-Drinfeld local geometric class field theory

Points on affine hypersurface over finite field

Why do we care about $(\infty,2)$-categories?

Simple question about polynomials

What are advantages of chiral algebras over vertex algebras?

Application of toric varieties for problems that do not mention them

How should I think about the Grothendieck-Springer alteration?

Ideal of the boundary of $G/U \subset \overline{G/U}$

Remark 2.4.1.4 Higher Topos Theory

Why should affine lie algebras and quantum groups have equivalent representation theories?

If I exchange infinitely many digits of $\pi$ and $e$, are the two resulting numbers transcendental?

Universal enveloping algebra and the algebra of invariant differential operators

$K_0$-equivalence of varieties

Conceptual explanation for curious linear-algebra fact in characteristic $2$

A basis of holomorphic differentials on Fermat curves

Relation between flatness and integrability of an algebraic connection

Current progress on rationality problem for complex hypersurfaces

Thomason-Trobaugh Theorem

Holomorphic vector bundles over a Riemann surface does not satisfy $\mathbf{AB2}$ but satisfies $\mathbf{AB1}$

Do the following two filtrations of the affine Grassmannian agree?