We define here an analogue, for a semi-stable group scheme whose generic fiber is an abelian variety, of M. J. Taylor's class-invariant homomorphism (defined for abelian schemes), and we give a geometric description of it. Then we extend a result of Taylor, Srivastav, Agboola and Pappas concerning the kernel of this homomorphism in the case of a semi-stable elliptic curve
We extend the methods of geometric invariant theory to actions of non-reductive groups in the case o...
Abstract. We prove a general homological stability theorem for families of auto-morphism groups in c...
Abstract. The Jacobian J0(23) of the modular curve X0(23) is a semi-stable abelian variety over Q wi...
We define here an analogue, for a semi-stable group scheme whose generic fiber is an abelian variety...
We define here an analogue, for the Néron model of a semi-stable abelian variety defined over a numb...
In this thesis we study the Galois structure of torsors under finite or quasi-finite flat group sche...
The so-called class-invariant homomorphism $\psi$ measures the Galois module structure of torsors--u...
The so-called class-invariant homomorphism ψ measures the Galois module structure of torsors—under a...
The class-invariant homomorphism allows one to measure the Galois module structure of torsors--under...
The semistable reduction theorem for curves was discussed in Christian’s notes. In these notes, we w...
In this note we study the semi-stable reduction of Galois covers of curves of degree p over a comple...
Abstract. The natural action of the mapping class group of an orientable or non-orientable surface o...
Let C be a complex smooth projective algebraic curve endowed with an action of a finite group G such...
Dans cette thèse, on s'intéresse à la propriété de semi-stabilité des variétés abéliennes sur les co...
AbstractGiven an abelian variety over a field with a discrete valuation, Grothendieck defined a cert...
We extend the methods of geometric invariant theory to actions of non-reductive groups in the case o...
Abstract. We prove a general homological stability theorem for families of auto-morphism groups in c...
Abstract. The Jacobian J0(23) of the modular curve X0(23) is a semi-stable abelian variety over Q wi...
We define here an analogue, for a semi-stable group scheme whose generic fiber is an abelian variety...
We define here an analogue, for the Néron model of a semi-stable abelian variety defined over a numb...
In this thesis we study the Galois structure of torsors under finite or quasi-finite flat group sche...
The so-called class-invariant homomorphism $\psi$ measures the Galois module structure of torsors--u...
The so-called class-invariant homomorphism ψ measures the Galois module structure of torsors—under a...
The class-invariant homomorphism allows one to measure the Galois module structure of torsors--under...
The semistable reduction theorem for curves was discussed in Christian’s notes. In these notes, we w...
In this note we study the semi-stable reduction of Galois covers of curves of degree p over a comple...
Abstract. The natural action of the mapping class group of an orientable or non-orientable surface o...
Let C be a complex smooth projective algebraic curve endowed with an action of a finite group G such...
Dans cette thèse, on s'intéresse à la propriété de semi-stabilité des variétés abéliennes sur les co...
AbstractGiven an abelian variety over a field with a discrete valuation, Grothendieck defined a cert...
We extend the methods of geometric invariant theory to actions of non-reductive groups in the case o...
Abstract. We prove a general homological stability theorem for families of auto-morphism groups in c...
Abstract. The Jacobian J0(23) of the modular curve X0(23) is a semi-stable abelian variety over Q wi...
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