17

Questions

votes newest views recent

12

11

votes

9

answers

3k

views

Geometric imagination of differential forms

geometry dg.differential-geometry intuition tag-removed

jul 7 10 at 1:08 Suresh Venkat 2,697●8●17

11

21

votes

2

answers

2k

views

Examples of loss of regularity by “creation of topology”

ca.analysis-and-odes dg.differential-geometry fa.functional-analysis differential-topology

feb 3 at 7:31 Filippo Alberto Edoardo 1,903●6●14

4

votes

1

answer

881

views

Defining the slowest divergent series

divergent-series nonstandard-analysis heuristics sequences-and-series

dec 24 11 at 1:05 Goldstern 5,310●1●12●27

4

12

votes

2

answers

543

views

nontrivial $\pi_2(Diff(M))$

topology

may 26 12 at 8:36 Mircea 937●4●13

1

2

votes

2

answers

541

views

Trace space and Neumann boundary condition

ap.analysis-of-pdes elliptic-pde fa.functional-analysis

oct 8 10 at 6:52 Denis Serre 18.8k●1●31●94

2

7

votes

4

answers

494

views

Are there good product rules on the $k$-sphere?

reference-request differential-topology

oct 1 10 at 0:54 Tom Goodwillie 27k●2●62●111

2

4

votes

1

answer

472

views

criterion for being a curvature

dg.differential-geometry

dec 5 11 at 13:24 Robert Bryant 22.4k●3●75●98

5

6

votes

3

answers

438

views

Moser regularity proof avoiding John-Nirenberg lemma

reference-request elliptic-pde ap.analysis-of-pdes

mar 25 12 at 18:07 Connor Mooney 571●1●6

3

6

votes

1

answer

337

views

What would the best treatment of Gehring’s lemma look like?

ca.analysis-and-odes ap.analysis-of-pdes inequalities regularity reference-request

jul 21 11 at 16:29 fedja 20k●2●48●96

1

1

vote

2

answers

273

views

solvability of an elementary functional equation

elementary

apr 5 11 at 17:04 mt 1,186●2●7●13