User Qfwfq

74 votes

14 answers

6k views

Why is Set, and not Rel, so ubiquitous in mathematics?

asked Feb 7, 2013 at 0:51

11 votes

2 answers

688 views

Where does the term "torsor" come from?

asked Dec 29, 2012 at 16:50

46 votes

6 answers

4k views

Is there a quaternionic algebraic geometry ?

asked Jan 13, 2011 at 14:46

6 votes

3 answers

1k views

Is there an "undecided" assertion of which a proof that it's not undecidable is known?

asked Sep 8, 2011 at 22:10

11 votes

1 answer

2k views

Do complete non-projective varieties arise "in nature"?

asked Nov 5, 2012 at 1:44

24 votes

2 answers

1k views

What is $\mathbb{Q}_1$, the "field of $1$-adic numbers"?

asked Sep 2, 2018 at 11:15

125 votes

15 answers

15k views

Does Physics need non-analytic smooth functions?

asked Nov 26, 2012 at 16:58

40 votes

17 answers

10k views

Interesting mathematical topics arising from biology

asked Sep 1, 2011 at 21:34

2 votes

1 answer

522 views

Geometric interpretation of a (standard) commutative algebra fact

asked Dec 11, 2013 at 10:42

34 votes

6 answers

3k views

Compactification theorem for differentiable manifolds ?

asked Apr 24, 2010 at 17:20

10 votes

8 answers

1k views

Classifications of finite simple objects

asked Apr 3, 2011 at 17:00

10 votes

0 answers

408 views

Theories of truth

asked Mar 27, 2021 at 20:57

20 votes

5 answers

2k views

Is there a relation between 4-dimensional general relativity and exotic smooth structures on $\mathbb{R}^4$?

asked Sep 20, 2011 at 14:29

14 votes

2 answers

793 views

Harmonic polynomials on the sphere

asked Apr 21, 2022 at 0:22

68 votes

5 answers

17k views

Mathematics of path integral: state of the art

asked Mar 27, 2010 at 9:19

21 votes

4 answers

3k views

Complete (possibly official) list of "What is..." articles from the Notices of the AMS

asked Feb 4, 2014 at 12:35

8 votes

1 answer

561 views

Pushforward of line bundle under "toric isogeny"

asked Nov 17, 2015 at 19:03

31 votes

6 answers

5k views

What's "geometric algebra"?

asked Feb 10, 2020 at 15:08

15 votes

1 answer

1k views

How would you organize a cycle of seminars aimed at learning together some basics of Derived Algebraic Geometry?

asked Jan 19, 2018 at 1:23

57 votes

14 answers

18k views

Open problems in Euclidean geometry?

asked Jan 30, 2011 at 16:15

4 votes

0 answers

222 views

For which smooth varieties is the Jacobian conjecture known to be true?

asked Jul 8, 2021 at 8:57

79 votes

15 answers

14k views

Why torsion is important in (co)homology ?

asked Apr 26, 2010 at 10:56

127 votes

13 answers

29k views

Why are modular forms interesting?

asked May 14, 2010 at 10:25

9 votes

1 answer

215 views

Function spaces satisfying $\mathcal{F}(M\times N)\simeq\mathcal{F}(M)\otimes\mathcal{F}(N)$

asked Dec 28, 2020 at 2:17

44 votes

12 answers

9k views

How to explain to an engineer what algebraic geometry is?

asked Oct 22, 2018 at 21:33

3 votes

0 answers

148 views

Can every contractible space be embedded as a convex subset of a vector space?

asked Oct 15, 2020 at 16:08

4 votes

1 answer

357 views

History of the notation for scalar product

asked Sep 7, 2020 at 21:16

18 votes

1 answer

850 views

"Real algebraic varieties" vs finite type separated reduced $\mathbb{R}$-schemes with dense $\mathbb{R}$-points

asked Jun 11, 2020 at 1:55

19 votes

1 answer

1k views

A result on Lie group actions on 15-dimensional spheres?

asked Aug 24, 2020 at 19:30

19 votes

1 answer

2k views

What is Chemlambda? In which ways could it be interesting for a mathematician?

asked May 15, 2018 at 15:39

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168 Questions

Why is Set, and not Rel, so ubiquitous in mathematics?

Where does the term "torsor" come from?

Is there a quaternionic algebraic geometry ?

Is there an "undecided" assertion of which a proof that it's not undecidable is known?

Do complete non-projective varieties arise "in nature"?

What is $\mathbb{Q}_1$, the "field of $1$-adic numbers"?

Does Physics need non-analytic smooth functions?

Interesting mathematical topics arising from biology

Geometric interpretation of a (standard) commutative algebra fact

Compactification theorem for differentiable manifolds ?

Classifications of finite simple objects

Theories of truth

Is there a relation between 4-dimensional general relativity and exotic smooth structures on $\mathbb{R}^4$?

Harmonic polynomials on the sphere

Mathematics of path integral: state of the art

Complete (possibly official) list of "What is..." articles from the Notices of the AMS

Pushforward of line bundle under "toric isogeny"

What's "geometric algebra"?

How would you organize a cycle of seminars aimed at learning together some basics of Derived Algebraic Geometry?

Open problems in Euclidean geometry?

For which smooth varieties is the Jacobian conjecture known to be true?

Why torsion is important in (co)homology ?

Why are modular forms interesting?

Function spaces satisfying $\mathcal{F}(M\times N)\simeq\mathcal{F}(M)\otimes\mathcal{F}(N)$

How to explain to an engineer what algebraic geometry is?

Can every contractible space be embedded as a convex subset of a vector space?

History of the notation for scalar product

"Real algebraic varieties" vs finite type separated reduced $\mathbb{R}$-schemes with dense $\mathbb{R}$-points

A result on Lie group actions on 15-dimensional spheres?

What is Chemlambda? In which ways could it be interesting for a mathematician?