User Chris Gerig - MathOverflow

Chris Gerig

Member for 13 years, 3 months
Last seen this week

scholar.harvard.edu/gerig
Harvard University, Cambridge, MA, USA

60 Questions

Score Activity Newest Views

70 votes

1 answer

5k views

Nontrivial finite group with trivial group homologies?

asked Jan 19, 2011 at 22:17

65 votes

9 answers

9k views

List of Classifying Spaces and Covers

asked Feb 23, 2011 at 6:54

59 votes

3 answers

5k views

Operations via Morse Theory

asked Jul 1, 2012 at 6:17

44 votes

2 answers

5k views

Meaning/origin of Seiberg-Witten equations/invariants

asked Feb 14, 2012 at 7:20

43 votes

4 answers

5k views

Why the Dold-Thom theorem?

asked Oct 7, 2014 at 17:48

38 votes

2 answers

3k views

What else is Seiberg-Witten Theory equal to?

asked Jun 13, 2012 at 16:41

37 votes

4 answers

8k views

How to tackle the smooth Poincaré conjecture

asked May 20, 2012 at 6:07

34 votes

1 answer

3k views

Manifolds admitting CW-structure with single n-cell

asked Feb 4, 2013 at 20:31

30 votes

7 answers

4k views

Intuition for failure of Implicit Function theorem on Frechet Manifolds

asked Jun 28, 2013 at 23:51

29 votes

1 answer

4k views

What goes wrong for the Sobolev embeddings at $k=n/p$?

asked Mar 8, 2013 at 22:09

26 votes

2 answers

1k views

Vector fields on $(4n+1)$-spheres

asked Apr 30, 2013 at 2:17

24 votes

3 answers

2k views

What tools cannot work for orbifolds?

asked Jul 9, 2013 at 17:25

23 votes

6 answers

2k views

Pathological Examples of Dimension

asked Oct 16, 2012 at 20:42

23 votes

5 answers

4k views

Understanding/Mastering Analysis in Topology, necessary?

asked Mar 5, 2012 at 4:43

17 votes

4 answers

2k views

How Many 4-Manifolds are Symplectic?

asked Oct 27, 2012 at 4:23

17 votes

2 answers

2k views

Why Donaldson's Four-Six Conjecture?

asked Nov 14, 2012 at 21:22

16 votes

3 answers

4k views

Homotopy Groups of Connected Sums

asked Apr 6, 2012 at 6:23

16 votes

0 answers

440 views

Does $S^4$ have a "symplecto-homeomorphic" structure?

asked Sep 1, 2014 at 22:02

16 votes

1 answer

515 views

Handlebody decomposition of 4-spheres without 3-handles

asked Sep 14, 2018 at 19:01

16 votes

1 answer

678 views

Study topology from existence of multiple smooth structures?

asked Dec 4, 2019 at 15:37

14 votes

4 answers

2k views

Other Homology Theories still Count Holes?

asked Mar 15, 2012 at 3:54

13 votes

5 answers

2k views

Yang-Mills and Chern-Simons functionals as Morse functions

asked Apr 14, 2012 at 21:40

13 votes

0 answers

363 views

Finite dimensional approximation of Donaldson theory

asked Nov 30, 2017 at 23:06

11 votes

1 answer

934 views

Spaces of Finite Subsets

asked Dec 24, 2011 at 22:47

10 votes

2 answers

2k views

Floer homology and Invariants for Einstein Field Equations?

asked Aug 13, 2012 at 20:49

10 votes

1 answer

3k views

'Contactization' and Symplectization

asked Sep 16, 2012 at 5:50

9 votes

1 answer

557 views

Seeking a seemingly missing reference of Casson

asked Oct 5, 2012 at 23:03

9 votes

3 answers

2k views

When does a hypersurface have contact-type?

asked Aug 24, 2012 at 7:18

9 votes

1 answer

938 views

Analog of "Spin" Chern-Simons Theory

asked Jun 27, 2012 at 6:01

9 votes

3 answers

1k views

Relation between groups and classifying spaces

asked Jan 25, 2013 at 1:52

1