User Viktor Bundle

27 votes

0 answers

3k views

Ricci flat metric on $n$-sphere?

asked Jun 17, 2011 at 20:29

19 votes

4 answers

7k views

unique continuation principle

asked Mar 17, 2012 at 0:38

15 votes

1 answer

2k views

Geometric Interpretation of $Q$-curvature

asked Jul 2, 2011 at 23:06

12 votes

2 answers

1k views

Obstructions to Einstein metrics in high dimensions

asked Jul 3, 2011 at 23:40

10 votes

2 answers

1k views

Einstein metrics and conformal geometry

asked Jun 21, 2011 at 21:25

5 votes

3 answers

647 views

Looking for ideas concerning the teaching of lower-division differential equation courses...

asked Jul 4, 2011 at 1:02

4 votes

0 answers

343 views

Constant scalar curvature+Constant $\sigma_2(C_g)$ curvature = ?

asked Jun 20, 2011 at 23:49

4 votes

1 answer

634 views

Higher order Sobolev inequality

asked Jun 27, 2011 at 0:44

4 votes

1 answer

283 views

non-negativity to positivity

asked Nov 13, 2011 at 22:47

4 votes

1 answer

294 views

upper bound on first non-zero eigenvalue of the Laplacian

asked Dec 16, 2012 at 1:09

3 votes

1 answer

658 views

harmonic curvature versus Einstein metric

asked Oct 27, 2013 at 14:37

3 votes

1 answer

309 views

ellipticity and invertible differential operators

asked Feb 19, 2012 at 15:59

3 votes

0 answers

488 views

kernel of the conformal Laplacian

asked Jul 18, 2011 at 3:53

3 votes

3 answers

473 views

smooth/real analytic interpolation of monotonic sequence

asked Jul 22, 2011 at 2:45

3 votes

1 answer

225 views

Asymptotics of a bubble

asked Aug 20, 2011 at 6:15

3 votes

1 answer

225 views

meromorphic family of pseudo-differential operators

asked Oct 19, 2011 at 21:10

3 votes

1 answer

491 views

Vanishing on Bad Sets

asked Jun 25, 2011 at 20:16

3 votes

0 answers

234 views

Negative Paneitz constant on $n$-sphere

asked Jun 19, 2011 at 22:55

2 votes

2 answers

507 views

Positivity of Second-Order Elliptic Differential Operators

asked Jun 20, 2011 at 22:45

2 votes

1 answer

186 views

ellipticity independent of metric?

asked Mar 9, 2012 at 19:17

1 vote

0 answers

272 views

Bound on $Q$ implies bound on $R$?

asked Jul 15, 2011 at 1:38

1 vote

1 answer

265 views

radial limits of subharmonic functions

asked Sep 12, 2013 at 19:41

1 vote

1 answer

138 views

Estimating norms of derivatives

asked Mar 8, 2012 at 17:24

0 votes

2 answers

238 views

Estimate on the size of flat balls where the Weyl tensor vanishes

asked Jul 14, 2011 at 0:35

0 votes

0 answers

96 views

partial maximum principle for elliptic differential operators

asked Jul 4, 2013 at 11:39

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25 Questions

Ricci flat metric on $n$-sphere?

unique continuation principle

Geometric Interpretation of $Q$-curvature

Obstructions to Einstein metrics in high dimensions

Einstein metrics and conformal geometry

Looking for ideas concerning the teaching of lower-division differential equation courses...

Constant scalar curvature+Constant $\sigma_2(C_g)$ curvature = ?

Higher order Sobolev inequality

non-negativity to positivity

upper bound on first non-zero eigenvalue of the Laplacian

harmonic curvature versus Einstein metric

ellipticity and invertible differential operators

kernel of the conformal Laplacian

smooth/real analytic interpolation of monotonic sequence

Asymptotics of a bubble

meromorphic family of pseudo-differential operators

Vanishing on Bad Sets

Negative Paneitz constant on $n$-sphere

Positivity of Second-Order Elliptic Differential Operators

ellipticity independent of metric?

Bound on $Q$ implies bound on $R$?

radial limits of subharmonic functions

Estimating norms of derivatives

Estimate on the size of flat balls where the Weyl tensor vanishes

partial maximum principle for elliptic differential operators