We prove that for every finitely-presented group G there exists a 2-dimensional irreducible complex-projective variety W with the fundamental group G, so that all singularities of W are normal crossings and Whitney umbrellas. © 2013 Springer-Verlag Berlin Heidelberg
Let X denote a reduced algebraic variety and D a Weil divisor on X. The pair (X,D) is said to be sem...
We show that the representation variety for the surface group in characteristic zero is (absolutely)...
Abstract. We consider the problem of deciding if a group is the fundamental group of a smooth connec...
We prove that for every finitely-presented group G there exists a 2-dimensional irreducible...
We study fundamental groups of projective varieties with normal crossing singularities and ...
AbstractLetSbe a rational projective algebraic surface, with at worst quotient singular points but w...
International audienceLet X be a complex projective variety of dimension n with only isolated normal...
We define and study the fundamental pro-finite 2-groupoid of varieties X defined over a field k. Thi...
AbstractA projective normal surface is a Gorenstein log del Pezzo surface if it has only rational do...
Let $S$ be a normal projective algebraic surface with at worst log terminal singularities (i.e., quo...
The study of the topology of complex projective (or quasiprojective) smooth varieties depends strong...
AbstractWe express, under appropriate conditions, the fundamental group of a singular complex quasi-...
We deal with a reducible projective surface X with so-called Zappatic singularities, which are a gen...
In this short note, we give an obstruction to obtain examples of higher dimensional manifolds with i...
The present paper studies the structure of characteristic varieties of fundamental groups of graph m...
Let X denote a reduced algebraic variety and D a Weil divisor on X. The pair (X,D) is said to be sem...
We show that the representation variety for the surface group in characteristic zero is (absolutely)...
Abstract. We consider the problem of deciding if a group is the fundamental group of a smooth connec...
We prove that for every finitely-presented group G there exists a 2-dimensional irreducible...
We study fundamental groups of projective varieties with normal crossing singularities and ...
AbstractLetSbe a rational projective algebraic surface, with at worst quotient singular points but w...
International audienceLet X be a complex projective variety of dimension n with only isolated normal...
We define and study the fundamental pro-finite 2-groupoid of varieties X defined over a field k. Thi...
AbstractA projective normal surface is a Gorenstein log del Pezzo surface if it has only rational do...
Let $S$ be a normal projective algebraic surface with at worst log terminal singularities (i.e., quo...
The study of the topology of complex projective (or quasiprojective) smooth varieties depends strong...
AbstractWe express, under appropriate conditions, the fundamental group of a singular complex quasi-...
We deal with a reducible projective surface X with so-called Zappatic singularities, which are a gen...
In this short note, we give an obstruction to obtain examples of higher dimensional manifolds with i...
The present paper studies the structure of characteristic varieties of fundamental groups of graph m...
Let X denote a reduced algebraic variety and D a Weil divisor on X. The pair (X,D) is said to be sem...
We show that the representation variety for the surface group in characteristic zero is (absolutely)...
Abstract. We consider the problem of deciding if a group is the fundamental group of a smooth connec...