bio  website  math.upsud.fr/~chambert 

location  Université ParisSud (Orsay)  
age  43  
visits  member for  4 years, 11 months 
seen  18 hours ago  
stats  profile views  3,375 
18h

answered  Texts about Dwork's work 
Mar 20 
comment 
Stokes theorem with corners
See also Serge Lang's book on Fundamentals of differentiable geometry (Chapter XVII, §3). 
Mar 19 
comment 
Homotopy Type Theory: What is it?
@IianSmythe, in the same vein as Hurkyl's comment, Set theory allows you to ask whether pi (defined as you wish, coded as a set, respecting strictly the pseudo a conventions we are used to) is a group. Or whether 3 is a topology (it is...). 
Mar 17 
awarded  Nice Answer 
Mar 16 
revised 
applications of Berkovich spaces
Correction of a misattribution. 
Mar 16 
comment 
applications of Berkovich spaces
@JérômePoineau: Oops. Thanks. I edit at once. 
Mar 16 
answered  Should the Grothendieck ring of varieties be K_0 of numerical motives? 
Mar 16 
comment 
Should the Grothendieck ring of varieties be K_0 of numerical motives?
Only with rational coefficients are the motives of $E$ and $E'$ isomorphic. 
Mar 16 
answered  applications of Berkovich spaces 
Mar 16 
comment 
Does the kan extension preserves contractible presheaves?
May we assume that $sPsh(\mathcal D)$ means simplicial presheaves on $\mathcal D$? 
Mar 15 
answered  Proper morphism and irreducibility of schemes 
Mar 9 
comment 
Sobolev's lemma on manifolds
This is done in GriffithsHarris's book on Algebraic geometry, along the lines checked by ThiKu. 
Mar 9 
comment 
Laumon's “Sur les modules de Krichever”
Send him an email? His email address can be found easily on the web. (firstname.lastname@math.upsud.fr) 
Mar 9 
awarded  Nice Answer 
Mar 9 
awarded  Enlightened 
Mar 9 
awarded  Nice Answer 
Mar 8 
comment 
Upper bound for the number of integral points in a convex set
In their paper Lattice points in convex bodies (Israel J. Math, Vol. 74, Nos. 23, 1991), H. Gillet and C. Soulé prove a similar inequality in all dimensions: Under your assumptions, $\lvert K\cap \mathbf Z^n\rvert \leq 6^n/\mathop{\rm Vol}(K^*)$, where $K^*$ is the convex body dual to $K$ (Prop. 3). They eventually combine this inequality with BourgainMilman's one. 
Mar 8 
answered  Blowups and blowdowns 
Mar 7 
revised 
Blowingup a point in the singular locus
typo in title :( 
Mar 6 
comment 
Abstract connectedness
@sure. I had forgotten the precision “closed and connected“; I edited the comment. 