14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Université de RennesFR408 papers
- Centre National de la Recherche ScientifiqueFR296 papers
- Institut de recherche mathématique de RennesFR189 papers
- Institut de Physique de RennesFR150 papers
- Université Paris DiderotFR79 papers
- Observatoire de ParisFR77 papers
- Université Paris-SudFR73 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR70 papers
- Observatoire de la Côte d’AzurFR70 papers
- University of WarsawPL69 papers
- Australian National UniversityAU67 papers
- University of Rome Tor VergataIT66 papers
31 papers · 1 filter
Integral points of bounded height on partial equivariant compactifications of vector groups
Antoine Chambert-Loir, Yuri Tschinkel
We establish asymptotic formulas for the number of integral points of bounded height on partial equivariant compactifications of vector groups.
A Pearson-Dirichlet random walk
G. Le Caer
A constrained diffusive random walk of n steps and a random flight in Rd, which can be expressed in the same terms, were investigated independently in recent papers. The n steps of…
Relation between static short-range order and dynamic heterogeneities in a nanoconfined liquid crystal
Ronan Lefort, Denis Morineau, Régis Guégan +3
We analyze the molecular dynamics heterogeneity of the liquid crystal 4-n-octyl-4'-cyanobiphenyl nanoconfined in porous silicon. We show that the temperature dependence of the dyna…
An estimate of the chemical composition of Titan's lakes
D. Cordier, O. Mousis, J. -I. Lunine +2
Hundreds of radar-dark patches interpreted as lakes have been discovered in the north and south polar regions of Titan. We have estimated the composition of these lakes by using th…
Two-Cooper-pair problem and the Pauli exclusion principle
W. V. Pogosov, M. Combescot, M. Crouzeix
While the one-Cooper pair problem is now a textbook exercise, the energy of two pairs of electrons with opposite spins and zero total momentum has not been derived yet, the exact h…
Forgetful linear systems on the projective space and rational normal curves over $\cM_{0,2n}^{GIT}$
Michele Bolognesi
Let $\cM_{0,n}$ the moduli space of -pointed rational curves. The aim of this note is to give a new, geometric construction of $\cM_{0,2n}^{GIT}$, the GIT compacification of $\c…
Confidence intervals for the Hurst parameter of a fractional Brownian motion based on finite sample size
Jean-Christophe Breton, Jean-François Coeurjolly
In this paper, we show how concentration inequalities for Gaussian quadratic form can be used to propose exact confidence intervals of the Hurst index parametrizing a fractional Br…
Search for gravitational-wave bursts associated with gamma-ray bursts using data from LIGO Science Run 5 and Virgo Science Run 1
LIGO Scientific Collaboration, Virgo Collaboration, B. P. Abbott +665
We present the results of a search for gravitational-wave bursts associated with 137 gamma-ray bursts (GRBs) that were detected by satellite-based gamma-ray experiments during the…
Contracting automorphisms and L^p-cohomology in degree one
Yves Cornulier, Romain Tessera
We characterize those Lie groups, and algebraic groups over a local field of characteristic zero, whose first reduced L^p-cohomology is zero for all p>1, extending a result of Pans…
On Modular Inverses of Cyclotomic Polynomials and the Magnitude of their Coefficients
Clement Dunand
Let p and r be two primes and n, m be two distinct divisors of pr. Consider the n-th and m-th cyclotomic polynomials. In this paper, we present lower and upper bounds for the coeff…
Fractal tiles associated with shift radix systems
Valérie Berthé, Anne Siegel, Wolfgang Steiner +2
Shift radix systems form a collection of dynamical systems depending on a parameter which varies in the -dimensional real vector space. They generalize well-known n…
Sphere penetration by impact in a granular medium: A collisional process
Antoine Seguin, Yann Bertho, Philippe Gondret +1
The penetration by a gravity driven impact of a solid sphere into a granular medium is studied by two-dimensional simulations. The scaling laws observed experimentally for both the…
Local description of the two-dimensional flow of foam through a contraction
Benjamin Dollet
The 2D flow of a foam confined in a Hele-Shaw cell through a contraction is investigated. Its rheological features are quantified using image analysis, with measurements of the ela…
Rational numbers with purely periodic -expansion
Boris Adamczewski, Christiane Frougny, Anne Siegel +1
We study real numbers with the curious property that the -expansion of all sufficiently small positive rational numbers is purely periodic. It is known that such real number…
Trend to equilibrium and particle approximation for a weakly selfconsistent Vlasov-Fokker-Planck equation
Francois Bolley, Arnaud Guillin, Florent Malrieu
We consider a Vlasov-Fokker-Planck equation governing the evolution of the density of interacting and diffusive matter in the space of positions and velocities. We use a probabilis…
Preferred sizes and ordering in surface nanobubble populations
Bram M. Borkent, Holger Schoenherr, Gerard Le Caer +2
Two types of homogeneous surface nanobubble populations, created by different means, are analyzed statistically on both their sizes and spatial positions. In the first type (create…
Some groups of mapping classes not realized by diffeomorphisms
Mladen Bestvina, Thomas Church, Juan Souto
Let S be a closed surface of genus g >= 2 and z in S a marked point. We prove that the subgroup of the mapping class group Map(S,z) corresponding to the fundamental group pi_1(S,z)…
Fast construction of irreducible polynomials over finite fields
Jean-Marc Couveignes, Reynald Lercier
We present a randomized algorithm that on input a finite field with elements and a positive integer outputs a degree irreducible polynomial in . The running t…
Variational study of the antiferromagnetic insulating phase of V2O3 based on Nth order Muffin-Tin-Orbitals
N. B. Perkins, S. Di Matteo, C. R. Natoli
Motivated by recent results of th order muffin-tin orbital (NMTO) implementation of the density functional theory (DFT), we re-examine low-temperature ground-state properties of…
A new variational approach to the stability of gravitational systems
Mohammed Lemou, Florian Mehats, Pierre Raphael
We consider the three dimensional gravitational Vlasov Poisson system which describes the mechanical state of a stellar system subject to its own gravity. A well-known conjecture i…
Martingales and Rates of Presence in Homogeneous Fragmentations
Nathalie Krell, Alain Rouault
The main focus of this work is the asymptotic behavior of mass-conservative homogeneous fragmentations. Considering the logarithm of masses makes the situation reminiscent of branc…
How to read the length of a braid from its curve diagram
Bert Wiest
We prove that the Garside length a braid is equal to a winding-number type invariant of the curve diagram of the braid.
Integrability of natural Hamiltonian systems with homogeneous potentials of degree zero
Guy Casale, Guillaume Duval, Andrzej J. Maciejewski +1
We derive necessary conditions for integrability in the Liouville sense of natural Hamiltonian systems with homogeneous potential of degree zero. We derive these conditions through…
A spectral gap property for subgroups of finite covolume in Lie groups
Bachir Bekka, Yves Cornulier
Let G be a real Lie group and H a lattice or, more generally, a closed subgroup of finite covolume in G. We show that the unitary representation lambda_{G/H} of G on L^2(G/H) has a…