619 citations
- Centro de Astrofísica da Universidade do PortoPT8 papers
- Instituto de Ciencia de Materiales de MadridES4 papers
- Petersburg Nuclear Physics InstituteRU4 papers
- University of CambridgeGB4 papers
- University of MinhoPT4 papers
- Boston UniversityUS3 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Laboratoire de Physique ThéoriqueFR3 papers
- Birkbeck, University of LondonGB2 papers
- CEA Paris-SaclayFR2 papers
- Instituto de TelecomunicaçõesPT2 papers
- Observatoire de ParisFR2 papers
9 papers · 1 filter
Contributions to the Geometric and Ergodic Theory of Conservative Flows
Mario Bessa, Jorge Rocha
We prove the following dichotomy for vector fields in a C1-residual subset of volume-preserving flows: for Lebesgue almost every point all Lyapunov exponents equal to zero or its o…
Low-Complexity Coding and Source-Optimized Clustering for Large-Scale Sensor Networks
G. Maierbacher, J. Barros
We consider the distributed source coding problem in which correlated data picked up by scattered sensors has to be encoded separately and transmitted to a common receiver, subject…
Dynamics of domain wall networks with junctions
P. P. Avelino, C. J. A. P. Martins, J. Menezes +2
We use a combination of analytic tools and an extensive set of the largest and most accurate three-dimensional field theory numerical simulations to study the dynamics of domain wa…
Dynamics of Biased Domain Walls and the Devaluation Mechanism
P. P. Avelino, C. J. A. P. Martins, L. Sousa
We study the evolution of biased domain walls in the early universe. We explicitly discuss the roles played by the surface tension and volume pressure in the evolution of the walls…
On the cosmological evolution of alpha and mu and the dynamics of dark energy
P. P. Avelino
We study the cosmological evolution of the fine structure constant, , and the proton-to-electron mass ratio, , in the context of a generic class of models where the g…
Estimation of stellar parameters using Monte Carlo Markov Chains
M. Bazot, S. Bourguignon, J. Christensen-Dalsgaard
We apply Monte Carlo Markov Chain methods to the stellar parameter estimation problem. This technique is useful when dealing with non-linear models and allows to derive realistic e…