User Richard Montgomery

101 votes

1 answer

8k views

Dropping three bodies

asked Feb 3, 2010 at 6:09

20 votes

2 answers

2k views

When does the blow-up of $CP^2$ at N points embed in $CP^4$?

asked Nov 25, 2011 at 18:08

19 votes

2 answers

1k views

Can a Lagrangian submanifold of ${\mathbb R}^{2n}$ be dense ($n>1$)?

asked Jan 17, 2012 at 4:51

16 votes

1 answer

1k views

A concrete realization of the nontrivial 2-sphere bundle over the 5-sphere?

asked Aug 21, 2013 at 2:58

14 votes

3 answers

2k views

Singularities of space curves: Open question lists?

asked Sep 9, 2010 at 22:41

12 votes

3 answers

1k views

A K3 over $P^1$ with six singular $A_1$- fibers?

asked Sep 25, 2011 at 2:09

12 votes

1 answer

677 views

Dodecahedral K3?

asked Oct 1, 2011 at 1:26

12 votes

4 answers

862 views

Breaking up the free Lie algebra into GL irreps

asked Nov 19, 2014 at 15:07

11 votes

1 answer

961 views

A GAGA question

asked Dec 30, 2009 at 5:48

11 votes

2 answers

501 views

Space Curves as Determinantal Varieties

asked Nov 9, 2010 at 5:46

9 votes

0 answers

175 views

How many components are there in the space of "generic" planar N-gons? (Mnev's revenge)

asked Jul 17, 2017 at 23:51

7 votes

1 answer

590 views

Spinor space to Euc. vector space: does there exist a universal bilinear map?

asked Jul 17, 2011 at 17:03

5 votes

2 answers

610 views

Newton Puiseux expansions for singular surfaces?

asked Jan 2, 2010 at 1:00

4 votes

4 answers

1k views

Continuous pointwise ergodic theorem?

asked Nov 22, 2012 at 1:10

4 votes

0 answers

49 views

Getting analytic center manifolds

asked Dec 7, 2022 at 1:47

4 votes

2 answers

154 views

Pushing a convex cone and equidistants

asked May 15 at 15:44

4 votes

0 answers

179 views

Recognize this metric? Do you have a name for this metric on the product of spheres?

asked Dec 1 at 3:21

2 votes

0 answers

90 views

Counting orbits of the standard map

asked Jun 30, 2018 at 22:49

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18 Questions

Dropping three bodies

When does the blow-up of $CP^2$ at N points embed in $CP^4$?

Can a Lagrangian submanifold of ${\mathbb R}^{2n}$ be dense ($n>1$)?

A concrete realization of the nontrivial 2-sphere bundle over the 5-sphere?

Singularities of space curves: Open question lists?

A K3 over $P^1$ with six singular $A_1$- fibers?

Dodecahedral K3?

Breaking up the free Lie algebra into GL irreps

A GAGA question

Space Curves as Determinantal Varieties

How many components are there in the space of "generic" planar N-gons? (Mnev's revenge)

Spinor space to Euc. vector space: does there exist a universal bilinear map?

Newton Puiseux expansions for singular surfaces?

Continuous pointwise ergodic theorem?

Getting analytic center manifolds

Pushing a convex cone and equidistants

Recognize this metric? Do you have a name for this metric on the product of spheres?

Counting orbits of the standard map