bio  website  perso.univstetienne.fr/… 

location  SaintEtienne, France  
age  32  
visits  member for  2 years, 11 months 
seen  1 min ago  
stats  profile views  1,394 
I am currently a Maître de Conférences in SaintÉtienne, in France. I am particularly interested in Number Theory and Arithmetic Geometry.
16h

comment 
Are there some other notions of “curvature” which measure how space curves?
Extremely nice and enlighting answer. Do you have some reference where the whole story is treated the way you present it, or does it come out of your experience (and then: why don't you turn it into a "reference"?). 
16h

reviewed  Edit suggested edit on An interesting double coset in the theory of automorphic forms 
20h

reviewed  Approve suggested edit on Failure of Fredholm property of elliptic PDE systems 
Aug 30 
reviewed  Approve suggested edit on Coloring summands of given npartition with given weights of colors 
Aug 29 
answered  Ideal classes fixed by the Galois group 
Aug 20 
reviewed  Approve suggested edit on Publishing problem 
Aug 17 
awarded  Custodian 
Aug 17 
reviewed  Approve suggested edit on Periodic Orbit property 
Jul 17 
comment 
How frequently is 3 a cubic residue mod primes in an arithmetic progression?
Nice, but I do not understand why you chek that $2$, rather than $3$, be a cubic nonresidue. 
Jul 9 
reviewed  Approve suggested edit on Pullback map in homology 
Jul 3 
reviewed  Approve suggested edit on Stability principal $G$bundles 
Jul 2 
awarded  Curious 
Jun 25 
comment 
Transcendental numbers in the padic rationals $\mathbb Q_p$
It seems to me that one way to turn the question into a meaningful one (although may be uninteresting to the OP) is to ask whether there exists an explicit way to tell whether an element of $\mathbb{C}_p$ (or of $\overline{\mathbb{Q}_p}$ or of any field $K\supseteq\mathbb{Q}_p$) which is trascendental over $\mathbb{Q}$ is already in $\mathbb{Q}_p$: like testing whether a trascendental complex number is real but in the $p$adic world. If $K/\mathbb{Q}_p$ is not Galois, it seems interesting. 
Jun 25 
reviewed  Reject suggested edit on nontrivial theorems with trivial proofs 
Jun 17 
reviewed  Approve suggested edit on Comparing KreinRutman theorem and Perron–Frobenius theorem 
Jun 14 
reviewed  Approve suggested edit on What is the probability that a random sequence of polynomials is regular? 
Jun 14 
reviewed  Approve suggested edit on Frechet differentiable implies reflexive? 
Jun 7 
comment 
What noncategorical applications are there of homotopical algebra?
Wow! Great, great answer. 
Jun 5 
comment 
Example of a nonsmooth irreducible component of the generic fibre of a Hida family?
@KevinVentullo: Yes, thanks! I was able to download it and it contains pretty much what I was looking for. 
Jun 5 
comment 
Example of a nonsmooth irreducible component of the generic fibre of a Hida family?
@Kevin(B.): sorry for my comment which is not related to your question, but do you have an explicit reference where computations/examples are made/provided for a CM family meeting a nonCM one? Thanks. 