Patrick Le Meur

Coverings of Laura Algebras: the Standard Case (2010)

Let a finite group G act on a differential graded Calabi-Yau algebra A over a field whose characteristic does not divide the order of G. This note studies when the crossed-product of A by G is still...

Assem, Ibrahim, Bustamante, Juan Carlos, Le Meur, Patrick

In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, it is not quasi-tilted of canonical type and its connecting components...

Coverings of Laura Algebras: the Standard Case (2010)

Assem, Ibrahim, Bustamante, Juan Carlos, Le Meur, Patrick

In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, it is not quasi-tilted of canonical type and its connecting components...

Coverings of Laura Algebras: the Standard Case (2010)

Assem, Ibrahim, Bustamante, Juan Carlos, Le Meur, Patrick

In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, it is not quasi-tilted of canonical type and its connecting components...

Coverings of Laura Algebras: the Standard Case (2010)

Assem, Ibrahim, Bustamante, Juan Carlos, Le Meur, Patrick

In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, it is not quasi-tilted of canonical type and its connecting components...

Coverings of Laura Algebras: the Standard Case (2010)

Assem, Ibrahim, Bustamante, Juan Carlos, Le Meur, Patrick

In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, it is not quasi-tilted of canonical type and its connecting components...

Degrees of irreducible morphisms and finite-representation type (2009)

Degrees of irreducible morphisms and finite-representation type (2009)

We study the degree of irreducible morphisms in any Auslander-Reiten component of a finite dimensional algebra over an algebraically closed field. We give a characterization for an irreducible...

Degrees of irreducible morphisms and finite-representation type (2009)

We study the degree of irreducible morphisms in any Auslander-Reiten component of a finite dimensional algebra over an algebraically closed field. We give a characterization for an irreducible...

Degrees of irreducible morphisms and finite-representation type (2009)

We study the degree of irreducible morphisms in any Auslander-Reiten component of a finite dimensional algebra over an algebraically closed field. We give a characterization for an irreducible...

Degrees of irreducible morphisms and finite-representation type (2009)

We study the degree of irreducible morphisms in any Auslander-Reiten component of a finite dimensional algebra over an algebraically closed field. We give a characterization for an irreducible...

We study the degree of irreducible morphisms in any Auslander-Reiten component of a finite dimensional algebra over an algebraically closed field. We give a characterization for an irreducible...

We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois...

Topological invariants of piecewise hereditary algebras (2008)

We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois...

The universal cover of a monomial triangular algebra without multiple arrows (2008)

We investigate the Galois coverings of piecewise hereditary algebras. In particular, we study their behaviour under derived equivalences. For a piecewise hereditary algebra, we prove that there...

The universal cover of a monomial triangular algebra without multiple arrows (2008)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple...

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple...

Let A be a basic connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. Under a...

Let A be a basic connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. Under a...

Let A be a basic connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. Under a...

The universal cover of a monomial triangular algebra without multiple arrows (2008)

Let A be a basic connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. Under a...

The universal cover of a monomial triangular algebra without multiple arrows (2008)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple...

Coverings of Laura Algebras: the Standard Case (2008)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple...

Assem, Ibrahim, Bustamante, Juan Carlos, Le Meur, Patrick

In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, it is not quasi-tilted of canonical type and its connecting components...

Coverings of Laura Algebras: the Standard Case (2008)

Assem, Ibrahim, Bustamante, Juan Carlos, Le Meur, Patrick

In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, it is not quasi-tilted of canonical type and its connecting components...

We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois...

We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois...

We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois...

We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois...

We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois...

The universal cover of a monomial triangular algebra without multiple arrows (2008)

Let A be a basic connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. Under a...

Galois coverings and simple connectedness of piecewise hereditary algebras (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple...

Galois coverings and simple connectedness of piecewise hereditary algebras (2007)

Let A a basic connected and finite dimensional piecewise hereditary algebra of type Q. We prove that A admits a universal Galois covering with group the fundamental group of Q. As a corollary, we...

Galois coverings and simple connectedness of piecewise hereditary algebras (2007)

Let A a basic connected and finite dimensional piecewise hereditary algebra of type Q. We prove that A admits a universal Galois covering with group the fundamental group of Q. As a corollary, we...

Topological invariants of piecewise hereditary algebras (2007)

Let A a basic connected and finite dimensional piecewise hereditary algebra of type Q. We prove that A admits a universal Galois covering with group the fundamental group of Q. As a corollary, we...

Topological invariants of piecewise hereditary algebras (2007)

We investigate the Galois coverings of piecewise algebras and more particularly their behaviour under derived equivalences. Under a technical assumption which is satisfied if the algebra is derived...

The universal cover of a monomial triangular algebra without multiple arrows (2007)

We investigate the Galois coverings of piecewise algebras and more particularly their behaviour under derived equivalences. Under a technical assumption which is satisfied if the algebra is derived...

The universal cover of a monomial triangular algebra without multiple arrows (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple...

On maximal diagonalizable Lie subalgebras of the first Hochschild cohomology (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple...

On maximal diagonalizable Lie subalgebras of the first Hochschild cohomology (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k and with ordinary quiver Q without oriented cycle. To any presentation of A by quiver and admissible...

The universal cover of an algebra without double bypass (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k and with ordinary quiver Q without oriented cycle. To any presentation of A by quiver and admissible...

On the comparison of the Hochschild cohomology and the fundamental groups of and algebra (2007)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

Simple connectedness of quasitilted algebras (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k and with ordinary quiver Q without oriented cycle. To any presentation of A by quiver and admissible...

The universal cover of an algebra without double bypass (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field. Assuming that A is quasitilted, we prove that A is simply connected if and only if its first Hochschild...

Simple connectedness of quasitilted algebras (2007)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

On the comparison of the Hochschild cohomology and the fundamental groups of and algebra (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field. Assuming that A is quasitilted, we prove that A is simply connected if and only if its first Hochschild...

Topological invariants of piecewise hereditary algebras (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k and with ordinary quiver Q without oriented cycle. To any presentation of A by quiver and admissible...

Topological invariants of piecewise hereditary algebras (2007)

We investigate the Galois coverings of piecewise hereditary algebras. In particular, we study their behaviour under derived equivalences. For a piecewise hereditary algebra, we prove that there...

Topological invariants of piecewise hereditary algebras (2007)

We investigate the Galois coverings of piecewise algebras and more particularly their behaviour under derived equivalences. Under a technical assumption which is satisfied if the algebra is derived...

On maximal diagonalizable Lie subalgebras of the first Hochschild cohomology (2007)

We investigate the Galois coverings of piecewise algebras and more particularly their behaviour under derived equivalences. Under a technical assumption which is satisfied if the algebra is derived...

On maximal diagonalizable Lie subalgebras of the first Hochschild cohomology (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k and with ordinary quiver Q without oriented cycle. To any presentation of A by quiver and admissible...

On maximal diagonalizable Lie subalgebras of the first Hochschild cohomology (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k and with ordinary quiver Q without oriented cycle. To any presentation of A by quiver and admissible...

Topological invariants of piecewise hereditary algebras (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field k and with ordinary quiver Q without oriented cycle. To any presentation of A by quiver and admissible...

The universal cover of an algebra without double bypass (2007)

We investigate the Galois coverings of piecewise algebras and more particularly their behaviour under derived equivalences. Under a technical assumption which is satisfied if the algebra is derived...

Simple connectedness of quasitilted algebras (2007)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

The universal cover of an algebra without double bypass (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field. Assuming that A is quasitilted, we prove that A is simply connected if and only if its first Hochschild...

Simple connectedness of quasitilted algebras (2007)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

The universal cover of an algebra without double bypass (2007)

Let A be a basic connected finite dimensional algebra over an algebraically closed field. Assuming that A is quasitilted, we prove that A is simply connected if and only if its first Hochschild...

Simple connectedness of quasitilted algebras (2007)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Let A be a basic connected finite dimensional algebra over an algebraically closed field. Assuming that A is quasitilted, we prove that A is simply connected if and only if its first Hochschild...

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Let A be a basic and connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. We compare...

Let A be a basic and connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. We compare...

Let A be a basic and connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. We compare...

Let A be a basic and connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. We compare...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Let A be a basic connected finite dimensional algebra over an algebraically closed field, let G be a group, let T be a basic tilting A-module and let B the endomorphism algebra of T. Under a...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

Revêtements galoisiens et groupe fondamental d'algèbres de dimension finie (2006)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

The universal cover of an algebra without double bypasses (2005)

Cette thèse est consacrée à l'étude des revêtements galoisiens et à la recherche du revêtement universel et du groupe fondamental pour les algèbres de dimension finie, connexes et basiques...

The universal cover of an algebra without double bypass (2005)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

The universal cover of an algebra without double bypass (2005)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

The universal cover of an algebra without double bypass (2005)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

The fundamental group of a triangular algebra without double bypasses (2005)

Let A be a basic finite dimensional and connected algebra over an algebraically closed field k with zero characteristic. If the ordinary quiver of A has no double bypasses, we show that A admits a...

The fundamental group of a triangular algebra without double bypasses (2005)

Let A be a basic connected finite dimensional algebra over a field k and let Q be the ordinary quiver of A. To any presentation of A with Q and admissible relations, R. Martinez-Villa and J. A. de La...

The fundamental group of a triangular algebra without double bypasses (2005)

Let A be a basic connected finite dimensional algebra over a field k and let Q be the ordinary quiver of A. To any presentation of A with Q and admissible relations, R. Martinez-Villa and J. A. de La...

The fundamental group of a triangular algebra without double bypasses (2005)

Let A be a basic connected finite dimensional algebra over a field k and let Q be the ordinary quiver of A. To any presentation of A with Q and admissible relations, R. Martinez-Villa and J. A. de La...

The fundamental group of a triangular algebra without double bypasses (2005)

Let A be a basic connected finite dimensional algebra over a field k and let Q be the ordinary quiver of A. To any presentation of A with Q and admissible relations, R. Martinez-Villa and J. A. de La...

The fundamental group of a triangular algebra without double bypasses (2005)

Let A be a basic connected finite dimensional algebra over a field k and let Q be the ordinary quiver of A. To any presentation of A with Q and admissible relations, R. Martinez-Villa and J. A. de La...

The fundamental group of a triangular algebra without double bypasses (2005)

Let A be a basic connected finite dimensional algebra over a field k and let Q be the ordinary quiver of A. To any presentation of A with Q and admissible relations, R. Martinez-Villa and J. A. de La...