2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT388 papers
- Centro de Física Teórica de Partículas54 papers
- University of ViennaAT37 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- University of LisbonPT34 papers
- University of MississippiUS31 papers
- Universitat de ValènciaES27 papers
- California Institute of TechnologyUS25 papers
- University of CoimbraPT19 papers
- European Organization for Nuclear ResearchCH18 papers
- Instituto de TelecomunicaçõesPT18 papers
- Instituto Politécnico de LisboaPT17 papers
444 papers
Hydrodynamic limit for a boundary driven super-diffusive symmetric exclusion
Cédric Bernardin, Pedro Cardoso, Patricia Gonçalves +1
We study the hydrodynamic limit for a model of symmetric exclusion processes with heavy-tailed long jumps and in contact with infinitely extended reservoirs. We show how the corres…
An efficient Lagrangian-based heuristic to solve a multi-objective sustainable supply chain problem
Camila P. S. Tautenhain, Ana Paula Barbosa-Povoa, Bruna Mota +1
Sustainable Supply Chain (SSC) management aims at integrating economic, environmental and social goals to assist in the long-term planning of a company and its supply chains. There…
Matrix Cofactorization for Joint Representation Learning and Supervised Classification -- Application to Hyperspectral Image Analysis
Adrien Lagrange, Mathieu Fauvel, Stéphane May +2
Supervised classification and representation learning are two widely used classes of methods to analyze multivariate images. Although complementary, these methods have been scarcel…
Colour field densities of the quark-antiquark excited flux tubes in SU(3) lattice QCD
P. Bicudo, N. Cardoso, M. Cardoso
We combine techniques previously utilised to study flux tube field density profiles and to study the excited spectrum of the gluonic fields produced by a static quark-antiquark pai…
Porous silicon carbide and aluminum oxide with unidirectional open porosity as model target materials for radioisotope beam production
M. Czapski, T. Stora, Caroline Tardivat +5
New silicon carbide (SiC) and aluminum oxide (Al2O3) of a tailor-made microstructure were produced using the ice-templating technique, which permits controlled pore formation condi…
Functoriality of groupoid quantales. II
Juan Pablo Quijano, Pedro Resende
Taking advantage of the quantale-theoretic description of étale groupoids we study principal bundles, Hilsum-Skandalis maps, and Morita equivalence in terms of modules on inverse q…
DIeSEL: DIstributed SElf-Localization of a network of underwater vehicles
Cláudia Soares, Pusheng Ji, João Gomes +1
How can teams of artificial agents localize and position themselves in GPS-denied environments? How can each agent determine its position from pairwise ranges, own velocity, and li…
Givental's non-linear Maslov index on lens spaces
Gustavo Granja, Yael Karshon, Milena Pabiniak +1
Givental's non-linear Maslov index, constructed in 1990, is a quasimorphism on the universal cover of the identity component of the contactomorphism group of real projective space.…
Operads of genus zero curves and the Grothendieck-Teichmüller group
Pedro Boavida de Brito, Geoffroy Horel, Marcy Robertson
We show that the group of homotopy automorphisms of the profinite completion of the genus zero surface operad is isomorphic to the (profinite) Grothendieck-Teichmüller group. Using…
Slow to fast infinitely extended reservoirs for the symmetric exclusion process with long jumps
Cedric Bernardin, Patricia Goncalves, Byron Oviedo Jimenez
We consider an exclusion process with long jumps in the box , for , in contact with infinitely extended reservoirs on its left and on its right. Th…
State Sensitivity Evaluation Within UD Based Array Covariance Filters
Julia V. Tsyganova, Maria V. Kulikova
This technical note addresses the UD factorization based Kalman filtering (KF) algorithms. Using this important class of numerically stable KF schemes, we extend its functionality…
The 21 cm signal and the interplay between dark matter annihilations and astrophysical processes
Laura Lopez-Honorez, Olga Mena, Ángeles Moliné +2
Future dedicated radio interferometers, including HERA and SKA, are very promising tools that aim to study the epoch of reionization and beyond via measurements of the 21 cm signal…
Characterization of subhalo structural properties and implications for dark matter annihilation signals
Ángeles Moliné, Miguel A. Sánchez-Conde, Sergio Palomares-Ruiz +1
A prediction of the standard LCDM cosmology is that dark matter (DM) halos are teeming with numerous self-bound substructure, or subhalos. The precise properties of these subhalos…
Gravitomagnetism and the significance of the curvature scalar invariants
L. Filipe O. Costa, Lode Wylleman, José Natário
The curvature invariants have been subject of interest due to the debate concerning the notions of intrinsic/extrinsic frame-dragging, the use of the electromagnetic analogy in suc…
Isotropic extragalactic flux from dark matter annihilations: lessons from interacting dark matter scenarios
Ángeles Moliné, Jascha A. Schewtschenko, Sergio Palomares-Ruiz +2
The extragalactic gamma-ray and neutrino emission may have a contribution from dark matter (DM) annihilations. In the case of discrepancies between observations and standard predic…
A theorem regarding families of topologically non-trivial fermionic systems
Bruno Mera, Miguel A. N. Araújo, Vítor R. Vieira
We introduce a Hamiltonian for fermions on a lattice and prove a theorem regarding its topological properties. We identify the topological criterion as a topologica…
Robust Collaborative Nonnegative Matrix Factorization For Hyperspectral Unmixing (R-CoNMF)
Jun Li, Jose M. Bioucas-Dias, Antonio Plaza +1
The recently introduced collaborative nonnegative matrix factorization (CoNMF) algorithm was conceived to simultaneously estimate the number of endmembers, the mixing matrix, and t…
Crossover to the stochastic Burgers equation for the WASEP with a slow bond
Tertuliano Franco, Patricia Gonçalves, Marielle Simon
We consider the weakly asymmetric simple exclusion process in the presence of a slow bond and starting from the invariant state, namely the Bernoulli product measure of parameter $…
Using Rank Aggregation for Expert Search in Academic Digital Libraries
Catarina Moreira, Bruno Martins, Pável Calado
The task of expert finding has been getting increasing attention in information retrieval literature. However, the current state-of-the-art is still lacking in principled approache…
Galaxy and Mass Assembly (GAMA): The evolution of bias in the radio source population to z ~ 1.5
S. N. Lindsay, M. J. Jarvis, M. G. Santos +8
We present a large-scale clustering analysis of radio galaxies in the Very Large Array (VLA) Faint Images of the Radio Sky at Twenty-cm (FIRST) survey over the Galaxy And Mass Asse…
Probing the radio emission from air showers with polarization measurements
Pierre Auger Collaboration
The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiatio…
Matrix model for deconfinement in a SU(Nc) gauge theory in 2+1 dimensions
Pedro Bicudo, Robert D. Pisarski, Elina Seel
We use an effective matrix model to study deconfinement in a pure SU(Nc) gauge theory, without quarks, in d=2+1 dimensions. Expanding about a constant background A0 field we constr…
Understanding Individual Differences: Towards Effective Mobile Interface Design and Adaptation for the Blind
Tiago Guerreiro, Hugo Nicolau, João Oliveira +2
No two people are alike. We usually ignore this diversity as we have the capability to adapt and, without noticing, become experts in interfaces that were probably misadjusted to b…
Experimental neutron capture data of Ni from the CERN n_TOF facility
TOF collaboration, P. Žugec, M. Barbagallo +99
The Ni cross section has been measured at the neutron time of flight facility n_TOF at CERN, in the energy range from 27 meV up to 400 keV. In total, 51 resonances h…