3.2k 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 ScientifiqueFR1.1k papers
- Observatoire de la Côte d’AzurFR595 papers
- Lagrange LaboratoryFR303 papers
- Laboratoire Jean-Alexandre DieudonnéFR217 papers
- Observatoire de ParisFR183 papers
- Université Paris DiderotFR149 papers
- National Institute for AstrophysicsIT147 papers
- Institut de Physique de NiceFR131 papers
- Sapienza University of RomeIT119 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR118 papers
- Université Pierre-et-Marie-CurieFR118 papers
- European Southern ObservatoryCL108 papers
17 papers · 1 filter
Iterated vanishing cycles, convolution, and a motivic analogue of a conjecture of Steenbrink
G. Guibert, F. Loeser, M. Merle
Using iterated vanishing cycles and convolution, we prove a motivic version of a conjecture of Steenbrink concerning the spectrum of hypersurface singularities
Phase separation in the bosonic Hubbard model with ring exchange
V. Rousseau, G. G. Batrouni, R. T. Scalettar
We show that soft core bosons in two dimensions with a ring exchange term exhibit a tendency for phase separation. This observation suggests that the thermodynamic stability of nor…
Fearless versus Fearful Speculative Financial Bubbles
J. V. Andersen, D Sornette
Using a recently introduced rational expectation model of bubbles, based on the interplay between stochasticity and positive feedbacks of prices on returns and volatility, we devel…
Computer theorem proving in math
Carlos T. Simpson
We give an overview of issues surrounding computer-verified theorem proving in the standard pure-mathematical context. This is based on my talk at the PQR conference (Brussels, Jun…
Hot Stars Mass-loss studied with Spectro-Polarimetric INterferometry (SPIN)
Olivier Chesneau, Sebastian Wolf, Armando Domiciano de Souza
We present a prospective work undertaken on Spectro-Polarimetric INterferometry (SPIN). Our theoretical studies suggest that SPIN is a powerful tool for studying the mass loss from…
Ringing effects reduction by improved deconvolution algorithm Application to A370 CFHT image of gravitational arcs
Muriel Roche, Christian Bracco, Claude Aime +2
We develop a self-consistent automatic procedure to restore informations from astronomical observations. It relies on both a new deconvolution algorithm called LBCA (Lower Bound Co…
Espaces profinis et problemes de realisabilite
Francois-Xavier Dehon, Gerald Gaudens
The mod p cohomology of a space comes with an action of the Steenrod Algebra. L. Schwartz [A propos de la conjecture de non realisation due a N. Kuhn, Invent. Math. 134, No 1, (199…
On the regularity of the polar factorization for time dependent maps
G. Loeper
We consider the polar factorization of vector valued mappings introduced by Y. Brenier. In the case of a family of mappings depending on a parameter. We investigate the regularity…
Equivariant chain complexes, twisted homology and relative minimality of arrangements
A. Dimca, S. Papadima
We show that the equivariant chain complex associated to a minimal CW-structure X on the complement M(A) of a hyperplane arrangement A, is independent of X. When A is a sufficientl…
Towards Landslide Predictions: Two Case Studies
D. Sornette, A. Helmstetter, J. V. Andersen +3
In a previous work [Helmstetter, 2003], we have proposed a simple physical model to explain the accelerating displacements preceding some catastrophic landslides, based on a slider…
Simplicial localization of monoidal structures, and a non-linear version of Deligne's conjecture
Joachim Kock, Bertrand Toën
We show that if $(M,\tensor,I)$ is a monoidal model category then $\REnd_M(I)$ is a (weak) 2-monoid in $\sSet$. This applies in particular when is the category of -bimodules…
Large-Eddy Simulation closures of passive scalar turbulence: a systematic approach
M. Martins Afonso, A. Celani, R. Festa +1
The issue of the parameterization of small scale (``subgrid'') turbulence is addressed in the context of passive scalar transport. We focus on the Kraichnan advection model which l…
Reconstruction of the early Universe as a convex optimization problem
Y. Brenier, U. Frisch, M. Henon +4
We show that the deterministic past history of the Universe can be uniquely reconstructed from the knowledge of the present mass density field, the latter being inferred from the 3…
Two-dimensional turbulence of dilute polymer solutions
G. Boffetta, A. Celani, S. Musacchio
We investigate theoretically and numerically the effect of polymer additives on two-dimensional turbulence by means of a viscoelastic model. We provide compelling evidence that at…
Extragalactic Astronomy with the VLTI: a new window on the Universe
Alessandro Marconi, Roberto Maiolino, Romain G. Petrov
Interferometry in the optical and near infrared has so far played a marginal role in Extragalactic Astronomy. Active Galactic Nuclei are the brightest and most compact extragalacti…
Phase-Field Approach for Faceted Solidification
Jean-Marc Debierre, Alain Karma, Franck Celestini +1
We extend the phase-field approach to model the solidification of faceted materials. Our approach consists of using an approximate gamma-plot with rounded cusps that can approach a…
VaR-Efficient Portfolios for a Class of Super- and Sub-Exponentially Decaying Assets Return Distributions
Y. Malevergne, D. Sornette
Using a family of modified Weibull distributions, encompassing both sub-exponentials and super-exponentials, to parameterize the marginal distributions of asset returns and their m…