625 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR282 papers
- Université de MontpellierFR261 papers
- Université Montpellier 296 papers
- Institut de Mathématiques de Jussieu-Paris Rive GaucheFR19 papers
- Institut national de recherche en sciences et technologies du numériqueFR18 papers
- Centre de Recherche en Mathématiques de la DécisionFR16 papers
- Institut Universitaire de FranceFR15 papers
- Monash UniversityAU15 papers
- Laboratoire Jean-Alexandre DieudonnéFR12 papers
- Institut de recherche mathématique de RennesFR11 papers
- Institut National de Recherche pour l'Agriculture, l'Alimentation et l'EnvironnementFR11 papers
- Laboratoire de Mathématiques d'OrsayFR11 papers
33 papers · 1 filter
Automorphisms and symplectic leaves of Calogero-Moser spaces
Cédric Bonnafé
We study the symplectic leaves of the subvariety of fixed points of an automorphism of a Calogero-Moser space induced by an element of finite order of the normalizer of the associa…
Electromagnetic neural source imaging under sparsity constraints with SURE-based hyperparameter tuning
Pierre-Antoine Bannier, Quentin Bertrand, Joseph Salmon +1
Estimators based on non-convex sparsity-promoting penalties were shown to yield state-of-the-art solutions to the magneto-/electroencephalography (M/EEG) brain source localization…
Arbitrary-order pressure-robust DDR and VEM methods for the Stokes problem on polyhedral meshes
Lourenço Beirão da Veiga, Franco Dassi, Daniele A. Di Pietro +1
This paper contains two major contributions. First we derive, following the discrete de Rham (DDR) and Virtual Element (VEM) paradigms, pressure-robust methods for the Stokes equat…
An arbitrary-order fully discrete Stokes complex on general polyhedral meshes
Marien-Lorenzo Hanot
In this paper we present an arbitrary-order fully discrete Stokes complex on general polyhedral meshes. We enriche the fully discrete de Rham complex with the addition of a full gr…
Dynamics of dirac concentrations in the evolution of quantitative alleles with sexual reproduction
Léonard Dekens, Sepideh Mirrahimi
A proper understanding of the links between varying gene expression levels and complex trait adaptation is still lacking, despite recent advances in sequencing techniques leading t…
-symmetric hyperkähler quantisation
Jørgen Ellegaard Andersen, Alessandro Malusà, Gabriele Rembado
We provide a new general scheme for the geometric quantisation of -symmetric hyper-Kähler manifolds, considering Hilbert spaces of holomorphic sections with r…
MV Polytopes and Masures
Tristan Bozec, Stéphane Gaussent
We realize affine Mirkovi{ć}-Vilonen polytopes using Littelmann's path model in the framework of masures. We are also able to read the decorations on the paths in the case of sl2.
Algebraic intersection in regular polygons
Julien Boulanger, Erwan Lanneau, Daniel Massart
We study the function $$\mbox{KVol} : (X,ω)\mapsto \mbox{Vol} (X,ω) \sup_{α,β} \frac{\mbox{Int} (α,β)}{l_g (α) l_g (β)}$$ defined on the moduli spaces of translation surfaces. More…
Locally elliptic actions, torsion groups, and nonpositively curved spaces
Thomas Haettel, Damian Osajda
Extending and unifying a number of well-known conjectures and open questions, we conjecture that locally elliptic (that is, every element has a bounded orbit) actions by automorphi…
A note on morphisms to wreath products
Anthony Genevois, Romain Tessera
Given a morphism from a finitely presented group to a wreath product , we show that, if the image of is a sufficiently large subgroup, then $\ma…
A posteriori error estimates via equilibrated stress reconstructions for contact problems approximated by Nitsche's method
Daniele Antonio Di Pietro, Ilaria Fontana, Kyrylo Kazymyrenko
We present an a posteriori error estimate based on equilibrated stress reconstructions for the finite element approximation of a unilateral contact problem with weak enforcement of…
Energy-stable discretization of two-phase flows in deformable porous media with frictional contact at matrix-fracture interfaces
Francesco Bonaldi, Jérôme Droniou, Roland Masson +1
We address the discretization of two-phase Darcy flows in a fractured and deformable porous medium, including frictional contact between the matrix-fracture interfaces. Fractures a…
Progrès récents sur la conjecture de Zagier et le programme de Goncharov [d'après Goncharov, Rudenko, Gangl, ...]
Clément Dupont
This survey article is the written version of a talk given at the Bourbaki seminar in April 2021. We give an introduction to Zagier's conjecture on special values of Dedekind zeta…
On the existence of logarithmic and orbifold jet differentials
Frédéric Campana, Lionel Darondeau, Jean-Pierre Demailly +1
We introduce the concept of directed orbifold, namely triples (X, V, D) formed by a directed algebraic or analytic variety (X, V), and a ramification divisor D, where V is a cohere…
The AKSZ Construction in Derived Algebraic Geometry as an Extended Topological Field Theory
Damien Calaque, Rune Haugseng, Claudia Scheimbauer
We construct a family of oriented extended topological field theories using the AKSZ construction in derived algebraic geometry, which can be viewed as an algebraic and topological…
Damped inertial dynamics with vanishing Tikhonov regularization: strong asymptotic convergence towards the minimum norm solution
Hedy Attouch, Aicha Balhag, Zaki Chbani +1
In a Hilbert space, we provide a fast dynamic approach to the hierarchical minimization problem which consists in finding the minimum norm solution of a convex minimization problem…
A short introduction to translation surfaces, Veech surfaces, and Teichmueller dynamics
Daniel Massart
We review the different notions about translation surfaces which are necessary to understand McMullen's classification of -orbit closures in genus two. In Secti…
A polytopal generalization of Apollonian packings and Descartes' theorem
Jorge L. Ramírez Alfonsín, Iván Rasskin
We present a generalization of Descartes' theorem for the family of polytopal sphere packings arising from uniform polytopes. The corresponding quadratic equation is expressed in t…
Physics-constrained intraventricular vector flow mapping by color Doppler
Florian Vixège, Alain Berod, Yunyun Sun +6
Color Doppler by transthoracic echocardiography creates 2-D fan-shaped maps of blood velocities in the cardiac cavities. It is a one-component velocimetric technique since it only…
A remark on one-harmonic maps from a Hadamard surface of pinched negative curvature to the hyperbolic plane
François Fillastre, Andrea Seppi
We show that every one-harmonic map, in the sense of Trapani and Valli, from a Hadamard surface of pinched negative curvature to has image the interior of the convex…
On the effect of perturbations in first-order optimization methods with inertia and Hessian driven damping
Hedy Attouch, Jalal Fadili, Vyacheslav Kungurtsev
Second-order continuous-time dissipative dynamical systems with viscous and Hessian driven damping have inspired effective first-order algorithms for solving convex optimization pr…
A Hybrid High-Order method for incompressible flows of non-Newtonian fluids with power-like convective behaviour
Daniel Castanon Quiroz, Daniele Antonio Di Pietro, André Harnist
In this work, we design and analyze a Hybrid High-Order (HHO) discretization method for incompressible flows of non-Newtonian fluids with power-like convective behaviour. We work u…
Shifted symplectic reduction of derived critical loci
Mathieu Anel, Damien Calaque
We prove that the derived critical locus of a -invariant function carries a shifted moment map, and that its derived symplectic reduction is the derived cri…
An arbitrary order and pointwise divergence-free finite element scheme for the incompressible 3D Navier-Stokes equations
M. Hanot
In this paper we discretize the incompressible Navier-Stokes equations in the framework of finite element exterior calculus. We make use of the Lamb identity to rewrite the equatio…