m

Documents  Bosser, Vincent | enregistrements trouvés : 7

O
     

-A +A

P Q

Déposez votre fichier ici pour le déplacer vers cet enregistrement.

Research talks;Algebraic and Complex Geometry;Number Theory

We describe stable models for modular curves associated with all maximal subgroups in prime level, including in particular the new case of non-split Cartan curves.
Joint work with Bas Edixhoven.

11G18 ; 14Q05 ; 14G35 ; 11G05

... Lire [+]

Déposez votre fichier ici pour le déplacer vers cet enregistrement.

Research talks;Algebraic and Complex Geometry;Number Theory

It is classical that, for example, there is a simple abelian variety of dimension $4$ which is not the jacobian of any curve of genus $4$, and it is not hard to see that there is one defined over the field of all algebraic numbers $\overline{\bf Q}$. In $2012$ Chai and Oort asked if there is a simple abelian fourfold, defined over $\overline{\bf Q}$, which is not even isogenous to any jacobian. In the same year Tsimerman answered ''yes''. Recently Zannier and I have done this over the rationals $\bf Q$, and with ''yes, almost all''. In my talk I will explain ''almost all'' the concepts involved. It is classical that, for example, there is a simple abelian variety of dimension $4$ which is not the jacobian of any curve of genus $4$, and it is not hard to see that there is one defined over the field of all algebraic numbers $\overline{\bf Q}$. In $2012$ Chai and Oort asked if there is a simple abelian fourfold, defined over $\overline{\bf Q}$, which is not even isogenous to any jacobian. In the same year Tsimerman answered ''yes''. ...

14H40 ; 14K02 ; 14K15 ; 11G10

... Lire [+]

Déposez votre fichier ici pour le déplacer vers cet enregistrement.

Research talks;History of Mathematics;Number Theory

The Galois groups of the title are those which are associated with elliptic curves over number fields; I shall explain the methods which were introduced in the 1960's in order to prove that they are large, and the questions about them which are still open fifty years later.
Galois - elliptic - l-adic - Tate - proofs

11G05 ; 11R32

... Lire [+]

Déposez votre fichier ici pour le déplacer vers cet enregistrement.

Research talks;Algebraic and Complex Geometry;Number Theory

I will explain some new connections between the $abc$ conjecture and modular forms. In particular, I will outline a proof of a new unconditional estimate for the $abc$ conjecture, which lies beyond the existing techniques in this context. The proof involves a number of tools such as Shimura curves, CM points, analytic number theory, and Arakelov geometry. It also requires some intermediate results of independent interest, such as bounds for the Manin constant beyond the semi-stable case. If time permits, I will also explain some results towards Szpiro's conjecture over totally real number fields which are compatible with the discriminant term appearing in Vojta's conjecture for algebraic points of bounded degree. I will explain some new connections between the $abc$ conjecture and modular forms. In particular, I will outline a proof of a new unconditional estimate for the $abc$ conjecture, which lies beyond the existing techniques in this context. The proof involves a number of tools such as Shimura curves, CM points, analytic number theory, and Arakelov geometry. It also requires some intermediate results of independent interest, such as bounds for the ...

11G18 ; 11F11 ; 11G05 ; 14G40

... Lire [+]

Déposez votre fichier ici pour le déplacer vers cet enregistrement.

Research talks;Algebraic and Complex Geometry;Number Theory

The Faltings height is a useful invariant for addressing questions in arithmetic geometry. In his celebrated proof of the Mordell and Shafarevich conjectures, Faltings shows the Faltings height satisfies a certain Northcott property, which allows him to deduce his finiteness statements. In this work we prove a new Northcott property for the Faltings height. Namely we show, assuming the Colmez Conjecture and the Artin Conjecture, that there are finitely many CM abelian varieties of a fixed dimension which have bounded Faltings height. The technique developed uses new tools from integral p-adic Hodge theory to study the variation of Faltings height within an isogeny class of CM abelian varieties. In special cases, we are able to use these techniques to moreover develop new Colmez-type formulas for the Faltings height. The Faltings height is a useful invariant for addressing questions in arithmetic geometry. In his celebrated proof of the Mordell and Shafarevich conjectures, Faltings shows the Faltings height satisfies a certain Northcott property, which allows him to deduce his finiteness statements. In this work we prove a new Northcott property for the Faltings height. Namely we show, assuming the Colmez Conjecture and the Artin Conjecture, that there are ...

14G40 ; 11G50 ; 11R04 ; 12F05

... Lire [+]

Déposez votre fichier ici pour le déplacer vers cet enregistrement.

Research talks;Algebraic and Complex Geometry;Number Theory

This talk will be a survey of recent results and methods used in the classification of torsion subgroups of elliptic curves over finite and infinite extensions of the rationals, and over function fields.

11G05 ; 11R21 ; 12F10 ; 14H52

... Lire [+]

Déposez votre fichier ici pour le déplacer vers cet enregistrement.

- 1158 p.
ISBN 978-2-10-004745-1

Sciences SUP

Localisation : Enseignement RdC (STOC)

arithmétique # handbook # usuel # enseignement # trigonométrie # géométrie des solides # calcul factoriel # géométrie analytique # matrice # déterminant # système linéaire # algèbre booléenne # graphe # algorithme # calcul différentiel # géométrie différentielle # série infinie # calcul intégral # fonction complexe # variable complexe # équation différentielle # transformation de Fourier # transformation de Laplace # probabilité # statistique # logique # réseau neuronal # informatique arithmétique # handbook # usuel # enseignement # trigonométrie # géométrie des solides # calcul factoriel # géométrie analytique # matrice # déterminant # système linéaire # algèbre booléenne # graphe # algorithme # calcul différentiel # géométrie différentielle # série infinie # calcul intégral # fonction complexe # variable complexe # équation différentielle # transformation de Fourier # transformation de Laplace # probabilité # statistique # ...

00A20 ; 00A22 ; 65A05

... Lire [+]

Z