12 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institut de Recherche Mathématique AvancéeFR147 papers
- Université de StrasbourgFR9 papers
- Institut national de recherche en sciences et technologies du numériqueFR8 papers
- Laboratoire Jacques-Louis LionsFR8 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Laboratoire Analyse, Géométrie et ApplicationsFR6 papers
- Laboratoire de Mathématiques Jean LerayFR5 papers
- Université de LorraineFR5 papers
- Université Paris CitéFR5 papers
- Institut Élie Cartan de LorraineFR4 papers
- Laboratoire de Mathématiques d'OrsayFR4 papers
- Laboratoire de Mathématiques Raphaël SalemFR4 papers
13 papers · 1 filter
Transitional geometry
Athanase Papadopoulos, Norbert A'Campo
We develop a transitional geometry, that is, a family of geometries of constant curvatures which makes a continuous connec-tion between the hyperbolic, Euclidean and spherical geom…
On the works of Euler and his followers on spherical geometry
Athanase Papadopoulos
We review and comment on some works of Euler and his followers on spherical geometry. We start by presenting some memoirs of Euler on spherical trigonometry. We comment on Euler's…
Cohomologie des foncteurs polynomiaux sur les groupes libres
Aurélien Djament, Teimuraz Pirashvili, Christine Vespa
We show that extension groups between two polynomial functors on free groups are the same in the category of all functors and in a subcategory of polynomial functors of bounded deg…
On hyperbolic analogues of some classical theorems in spherical geometry
Athanase Papadopoulos, Weixu Su
We provide hyperbolic analogues of some classical theorems in spherical geometry due to Menelaus, Euler, Lexell, Ceva and Lambert. Some of the spherical results are also made more…
Mathematics and group theory in music
Athanase Papadopoulos
The purpose of this paper is to show through particular examples how group theory is used in music. The examples are chosen from the theoretical work and from the compositions of O…
Actions of mapping class groups
Athanase Papadopoulos
This paper has three parts. The first part is a general introduction to rigidity and to rigid actions of mapping class group actions on various spaces. In the second part, we descr…
Certainty bands for the conditional cumulative distribution function and applications
Sandie Ferrigno, Bernard Foliguet, Myriam Maumy-Bertrand +1
In this paper, we establish uniform asymptotic certainty bands for the conditional cumulative distribution function. To this aim, we give exact rate of strong uniform consistency f…
Explicit symmetric differential forms on complete intersection varieties and applications
Damian Brotbek
In this paper we study the cohomology of tensor products of symmetric powers of the cotangent bundle of complete intersection varieties in projective space. We provide an explicit…
On Klein's So-called Non-Euclidean geometry
Norbert A'Campo, Athanase Papadopoulos
In two papers titled "On the so-called non-Euclidean geometry", I and II, Felix Klein proposed a construction of the spaces of constant curvature -1, 0 and and 1 (that is, hyperbol…
Convex real projective structures and Hilbert metrics
Inkang Kim, Athanase Papadopoulos
We review some basic concepts related to convex real projective structures from the differential geometry point of view. We start by recalling a Riemannian metric which originates…
From Funk to Hilbert Geometry
Athanase Papadopoulos, Marc Troyanov
We survey some basic geometric properties of the Funk metric of a convex set in . In particular, we study its geodesics, its topology, its metric balls, its convexity…
Affine transformations and parallel lightlike vector fields on compact Lorentzian -manifolds
Charles Boubel, Pierre Mounoud
We describe the compact Lorentzian -manifolds admitting a parallel lightlike vector field. The classification of compact Lorentzian -manifolds admitting non-isometric affine…
A well-balanced scheme for two-fluid flows in variable cross-section ducts
Philippe Helluy, Jonathan Jung
We propose a finite volume scheme for computing two-fluid flows in variable cross-section ducts. Our scheme satisfies a well-balanced property. It is based on the VFRoe approach. T…