bio  website  wwwfourier.ujfgrenoble.fr/… 

location  Grenoble  
age  29  
visits  member for  4 years, 1 month 
seen  3 hours ago  
stats  profile views  1,307 
Postdoc at EPFL, works in Riemannian geometry, and more specifically on Ricci flow.
2d

answered  Calculating Exterior Distance from Measurements of Inner Geometry 
Oct 17 
comment 
Is there an English translation of Minding's 1839 paper?
Can you state the theorem you want more precisely ? In particular the distinction between isometric and congruent. 
Oct 8 
comment 
Surfaces with curvature $\leq K$ are of bounded integral curvature
Welcome to MO ! 
Oct 3 
comment 
How to estimate $\nabla T^2\geq c\delta T^2$ besides CauchySchwarz inequality?
Why do you expect such an improvement to hold ? 
Sep 24 
awarded  Necromancer 
Sep 21 
comment 
Did differential geometry undergo a notation change?
In the same spirit, you may have noticed that even the definition of the curvature tensor can change between modern textbooks! 
Aug 30 
awarded  Yearling 
Jul 22 
comment 
Is the hypersurface satisfying $\langle xx_0,\nu\rangle>0$ 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 GromovHausdorff limit of a sequence of manifolds itself a manifold?
@ChihWeiChen Maybe you can make an answer of your comment. 
Feb 25 
awarded  Nice Answer 
Feb 25 
comment 
Topologie sur l'ensemble des sousgroupes 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 sousgroupes 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 ? 