396 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 ScientifiqueFR154 papers
- Paris-Est SupFR126 papers
- École nationale des ponts et chausséesFR92 papers
- CERMICSFR71 papers
- Institut national de recherche en sciences et technologies du numériqueFR64 papers
- Laboratoire d'Informatique Gaspard-MongeFR46 papers
- Laboratoire d’Analyse et de Mathématiques AppliquéesFR44 papers
- Université Paris-Est CréteilFR40 papers
- Université Paris-Est Marne-la-ValléeFR39 papers
- Laboratoire NavierFR33 papers
- Laboratoire Modélisation et Simulation Multi-EchelleFR29 papers
- Université Paris DiderotFR15 papers
41 papers · 1 filter
Maximum entropy copula with given diagonal section
Cristina Butucea, Jean-François Delmas, Anne Dutfoy +1
We consider copulas with a given diagonal section and compute the explicit density of the unique optimal copula which maximizes the entropy. In this sense, this copula is the least…
The simplicity of planar networks
Matheus P. Viana, Emanuele Strano, Patricia Bordin +1
Shortest paths are not always simple. In planar networks, they can be very different from those with the smallest number of turns - the simplest paths. The statistical comparison o…
A Note on the Longest Common Compatible Prefix Problem for Partial Words
Maxime Crochemore, Costas S. Iliopoulos, Tomasz Kociumaka +6
For a partial word the longest common compatible prefix of two positions , denoted , is the largest such that , where $\uparr…
On the genericity of Whitehead minimality
Frédérique Bassino, Cyril Nicaud, Pascal Weil
We show that a finitely generated subgroup of a free group, chosen uniformly at random, is strictly Whitehead minimal with overwhelming probability. Whitehead minimality is one of…
Clustering and Relational Ambiguity: from Text Data to Natural Data
Nicolas Turenne
Text data is often seen as "take-away" materials with little noise and easy to process information. Main questions are how to get data and transform them into a good document forma…
Positive isotropic curvature and self-duality in dimension 4
Thomas Richard, Harish Seshadri
We study a positivity condition for the curvature of oriented Riemannian 4-manifolds: The half- condition. It is a slight weakening of the positive isotropic curvature ()…
Conformally invariant wave equation for a symmetric second rank tensor ("spin-2") in d-dimensional curved background
J. Ben Achour, E. Huguet, J. Renaud
We build the general conformally invariant linear wave operator for a free, symmetric, second-rank tensor field in a d-dimensional () metric manifold, and explicit th…
Multifractal Analysis of functions on Heisenberg and Carnot Groups
Stéphane Seuret, François Vigneron
In this article, we investigate the pointwise behaviors of functions on the Heisenberg group. We find wavelet characterizations for the global and local Hölder exponents. Then we p…
Two-point function for the Maxwell field in flat Robertson-Walker spacetimes
E. Huguet, J. Renaud
We obtain an explicit two-point function for the Maxwell field in flat Roberson-Walker spaces, thanks to a new gauge condition which takes the scale factor into account and assume…
On the isotropic moduli of 2D strain-gradient elasticity
Nicolas Auffray
In the present paper, the simplest model of strain-gradient elasticity will be considered, that is the isotropy in a bidimensional space. Paralleling the definition of the classic…
A kinematic wave theory of capacity drop
Wen-Long Jin, Qi-Jian Gan, Jean-Patrick Lebacque
Capacity drop at active bottlenecks is one of the most puzzling traffic phenomena, but a thorough understanding is practically important for designing variable speed limit and ramp…
Expansions of MSO by cardinality relations
Alexis Bès
We study expansions of the Weak Monadic Second Order theory of (N,<) by cardinality relations, which are predicates R(X1,...,Xn) whose truth value depends only on the cardinality o…
Efficiency of the Wang-Landau algorithm: a simple test case
G. Fort, B. Jourdain, E. Kuhn +2
We analyze the efficiency of the Wang-Landau algorithm to sample a multimodal distribution on a prototypical simple test case. We show that the exit time from a metastable state is…
Multivariate transient price impact and matrix-valued positive definite functions
Aurélien Alfonsi, Alexander Schied, Florian Klöck
We consider a model for linear transient price impact for multiple assets that takes cross-asset impact into account. Our main goal is to single out properties that need to be impo…
Generalized Dynkin Games and Doubly Reflected BSDEs with Jumps
Roxana Dumitrescu, Marie-Claire Quenez, Agnès Sulem
We introduce a generalized Dynkin game problem with non linear conditional expectation induced by a Backward Stochastic Differential Equation (BSDE) with jumps. Let $ξ,…
A non linear approximation method for solving high dimensional partial differential equations: Application in Finance
José Arturo Infante Acevedo, Tony Lelievre
We study an algorithm which has been proposed by Chinesta et al. to solve high-dimensional partial differential equations. The idea is to represent the solution as a sum of tensor…
Low temperature asymptotics for Quasi-Stationary Distributions in a bounded domain
Tony Lelièvre, Francis Nier
We analyze the low temperature asymptotics of the quasi-stationary distribution associated with the overdamped Langevin dynamics (a.k.a. the Einstein-Smoluchowski diffusion equatio…
The fine structure of volatility feedback II: overnight and intra-day effects
Pierre Blanc, Rémy Chicheportiche, Jean-Philippe Bouchaud
We decompose, within an ARCH framework, the daily volatility of stocks into overnight and intra-day contributions. We find, as perhaps expected, that the overnight and intra-day re…
A Synergistic Approach for Recovering Occlusion-Free Textured 3D Maps of Urban Facades from Heterogeneous Cartographic Data
Karim Hammoudi, Fadi Dornaika, Bahman Soheilian +3
In this paper we present a practical approach for generating an occlusion-free textured 3D map of urban facades by the synergistic use of terrestrial images, 3D point clouds and ar…
Site effects in an alpine valley with strong velocity gradient: interest and limitations of the 'classical' BEM
Nicolas Delepine, Jean-François Semblat
Seismic waves may be strongly amplified in deep alluvial basins due to the velocity contrast (or velocity gradient) between the various layers as well as the basin edge effects. In…
Amplification of seismic ground motion in the Tunis basin: Numerical BEM simulations vs experimental evidences
Marc Kham, Jean-François Semblat, Nejla Bouden-Romdhane
This paper aims at the analysis of seismic wave amplification in a deep alluvial basin in the city of Tunis in Tunisia. This sedimentary basin is 3000m wide and 350m deep. Since th…
Baumslag-Solitar groups, relative profinite completions and measure equivalence rigidity
Cyril Houdayer, Sven Raum
We introduce an algebraic invariant for aperiodic inclusions of probability measure preserving equivalence relations. We use this invariant to prove that every stable orbit equival…
The computation of averages from equilibrium and nonequilibrium Langevin molecular dynamics
Benedict Leimkuhler, Charles Matthews, Gabriel Stoltz
We consider numerical methods for thermodynamic sampling, i.e. computing sequences of points distributed according to the Gibbs-Boltzmann distribution, using Langevin dynamics and…
A unifying perspective: the relaxed linear micromorphic continuum
Patrizio Neff, Ionel-Dumitrel Ghiba, Angela Madeo +2
We formulate a relaxed linear elastic micromorphic continuum model with symmetric Cauchy force-stresses and curvature contribution depending only on the micro-dislocation tensor. O…