bio | website | perso.univ-st-etienne.fr/… |
---|---|---|
location | Saint-Etienne, France | |
age | 33 | |
visits | member for | 3 years, 10 months |
seen | Jul 13 at 8:49 | |
stats | profile views | 1,696 |
I am currently a Maître de Conférences in Saint-Étienne, in France. I am particularly interested in Number Theory and Arithmetic Geometry.
Jun 10 |
comment |
Extension class and cup product
I was trying to come up with a precise and detailed proof, but ended up in being stuck. If you take $u\in H^p(X;M'')$ to be $1$ (I guess that by $1$ you mean the neutral element of the cohomology group) you do not have something related to the exact sequence you started with, because $H^p(X;M)=\mathrm{Ext}^p(O_X,M'')\neq \mathrm{Ext}^p(M',M'')$... |
May 13 |
reviewed | Approve method of moments and Laplace transform from Shepp and Lloyd |
May 6 |
comment |
Is every abelian group a colimit of copies of Z?
I have a stupid question: why can you assume $ne_i=e_j$ instead of $ne_i=me_j$? In this $p$-adic case they are probably equivalent since only the $p$-adic valuation matters but in general isn't it like assuming that $J$ be ordered or filtered? |
Apr 23 |
comment |
Axiomatizing Gross-Zagier formulae
Beautiful answer! As for your final question about these points being related to Heegner points, do you ethink one expects Heegner points at all along some anticyclotomic extension of the field at hand? |
Apr 22 |
reviewed | Approve References to study Weak and Strong Topologies and aproximations on function spaces of manifolds |
Apr 16 |
comment |
When complex conjugation lies in the center of a Galois group
You're perfectly right, I had overlooked your assumption while answering. I erased the portion of text in question. |
Apr 16 |
revised |
When complex conjugation lies in the center of a Galois group
deleted 237 characters in body |
Apr 15 |
awarded | Enlightened |
Apr 15 |
awarded | Nice Answer |
Apr 15 |
answered | When complex conjugation lies in the center of a Galois group |
Apr 5 |
answered | “frequency” of fields for which the p-adic regulator vanishes (mod p) |
Mar 31 |
answered | Structure of $\text{Aut}_R(R[X])$ |
Mar 28 |
comment |
Where to buy premium white chalk in the U.S., like they have at RIMS?
The very sad news, which I got from a Japanese colleague yesterday, is that Rakuten is closing end of March because of some economical issue. So, hurry up! |
Mar 25 |
comment |
Why no abelian varieties over Z?
@ Emerton: but oddly enough, Khare-Wintenberger need an inductive argument whose basic step relies upon Schoof's work on abelian varieties over number field with few bad places... ;) |
Mar 6 |
reviewed | Reject Inverse of a matrix expression |
Mar 6 |
reviewed | Approve Averages over integer points of the sphere |
Feb 25 |
comment |
Why is Class Field Theory the same as Langlands for GL_1?
@Kimball: I have downloaded the notes, but on page 115 you say that there is an isomorphisms between the idèle class group and the Galois group of $K^\text{ab}$, whereas I think you should mod-out by the connected component. This should create some discrepancy between "Galois characters" and "Hecke characters", no? |
Feb 24 |
comment |
structure of norm one group for quadratic extension of p-adic fields
By definition, $U_E$ are the units, so all its elements are invertible... |
Feb 9 |
reviewed | Edit Rational subspaces |
Feb 9 |
revised |
Rational subspaces
error in latex |