bio | website | www-fourier.ujf-grenoble.fr/… |
---|---|---|
location | Grenoble | |
age | 29 | |
visits | member for | 4 years |
seen | 27 mins ago | |
stats | profile views | 1,267 |
Postdoc at EPFL, works in Riemannian geometry, and more specifically on Ricci flow.
Jul 22 |
comment |
Is the hypersurface satisfying $\langle x-x_0,\nu\rangle>0$ diffeomorphic to sphere?
A cylinder in $\mathbb{R}^3$ satisfies your condition (with $x_0=0$ for the cylinder $\{(x,y,z)|x^2+y^2=1\}$). Maybe you want to assume compactness of $M$ ? |
Jul 2 |
awarded | Curious |
Jun 22 |
revised |
Is this function space a “classical” Sobolev space?
added 285 characters in body |
Jun 21 |
asked | Is this function space a “classical” Sobolev space? |
May 17 |
answered | both convex and superharmonic function on manifold concave? |
May 15 |
answered | Is group theory useful in any way to optimization? |
May 2 |
comment |
When is the Gromov--Hausdorff limit of a sequence of manifolds itself a manifold?
@Chih-WeiChen Maybe you can make an answer of your comment. |
Feb 25 |
awarded | Nice Answer |
Feb 25 |
comment |
Topologie sur l'ensemble des sous-groupes de GL_n(R)
I was just writing an answer about the Chabauty topology when you commented ! I didn't know about the Vietoris topology though. |
Feb 25 |
answered | Topologie sur l'ensemble des sous-groupes de GL_n(R) |
Jan 27 |
comment |
Background to understand Gromov's green book
Yes, a "good part" is probably really optimistic ! |
Jan 25 |
answered | Background to understand Gromov's green book |
Jan 23 |
comment |
The cones for Bochner–Lichnerowicz–Weitzenböck formula
When working on the bundle of $k$-forms, all of these cones contain the cone of nonnegative curvature operators (as operators on $2$-vectors). Can this be proved in general ? |
Dec 10 |
answered | Negative pinching and Ricci flow |
Nov 27 |
comment |
Smoothing of the distance function on a Riemannian manifold
@DeaneYang For Greene and Wu, no curvature assumption is required. |
Nov 27 |
comment |
Smoothing of the distance function on a Riemannian manifold
@VladimirSMatveev : I had a look at Azagra's paper, the improvement over Greene and Wu is that it handle infinite dimensional manifolds (at the level of the results, not of the proof which use really different methods if I understand). |
Nov 26 |
revised |
Smoothing of the distance function on a Riemannian manifold
added 214 characters in body |
Nov 26 |
revised |
Smoothing of the distance function on a Riemannian manifold
added 125 characters in body |
Nov 26 |
answered | Smoothing of the distance function on a Riemannian manifold |
Nov 9 |
accepted | Can an open manifold with positive Ricci curvature be non simply connected at infinity? |