bio | website | perso.ens-lyon.fr/… |
---|---|---|
location | Lyon, France | |
age | 38 | |
visits | member for | 4 years, 11 months |
seen | Mar 21 at 12:28 | |
stats | profile views | 3,092 |
I am a number theorist working in Lyon (France).
Feb 27 |
answered | injective implies completion injective? |
Feb 6 |
comment |
Status of local Langlands conjecture over positive characteristic
Laumon pas Laumont! |
Jan 24 |
answered | Text for Algebraic Number Theory |
Dec 18 |
revised |
Psi operator on Phi-Gamma modules
added 325 characters in body |
Dec 18 |
answered | Psi operator on Phi-Gamma modules |
Dec 7 |
awarded | Nice Answer |
Nov 26 |
comment |
maximal abelian extension of quadratic extension of $\mathbb Q_p$
You can always take $f(T)=\pi T + T^q$ where $\pi$ is a uniformizer and $q$ is the cardinality of the residue field. Any power series satisfying the conditions that you wrote will do. |
Oct 16 |
comment |
De Rham cohomology of formal groups
@Jon Beardsley: thank you! |
Oct 1 |
comment |
$(\varphi, \Gamma)$-modules of finite height
"Since representations that aren't of finite height do exist": take a semistable noncrystalline representation. |
Sep 10 |
comment |
Why does $H^i(X_{ét},\mathbb{Q}_p)$ have a Hodge-Tate structure?
As Keerthi pointed out, it's after you tensor by Cp that the powers of the cyclo char appear. But a statement like that is true for any Galois repn V by Sen's theory. What is specific to the étale cohomology is that it's integer powers of the cyclo char that appear. This is where you use the geometric input. As to why this is so... |
Aug 28 |
awarded | Nice Answer |
Aug 28 |
answered | What is the classification of characters in $p$-adic Hodge theory? |
Aug 27 |
comment |
$(\varphi, \Gamma)$-module of dimension 2 modulo $p$
"Finite height" does mean that in some basis, there are no denominators. This does not imply the same property holds in your favorite basis :) |
Aug 26 |
answered | $(\varphi, \Gamma)$-module of dimension 2 modulo $p$ |
Aug 2 |
answered | Generalization of Kummer isomorphism? |
Jul 31 |
awarded | Nice Answer |
Jul 30 |
awarded | Popular Question |
Jul 25 |
answered | Research-level mathematical bookstores |
Jul 9 |
comment |
Cyclotomic extension of p-adic fields
Oh ok, thank you for the clarification! |
Jul 9 |
comment |
Cyclotomic extension of p-adic fields
@Larsson: "Typical"? :-( See math.u-psud.fr/~biblio/pub/2000/abs/ppo2000_24.html for the preprint version of Fontaine's paper, and see mathoverflow.net/questions/96257/… concerning the availability of Asterisque. |