26 citations
- Universidade Federal do Rio Grande do SulBR8 papers
- Universidade Estadual de Campinas (UNICAMP)BR2 papers
- Universidade Federal do ParanáBR2 papers
- Universidade Federal do Vale do São FranciscoBR2 papers
- Universidade Federal Rural de PernambucoBR2 papers
- Brazilian Network Information CenterBR1 paper
- Centro de AstrobiologíaES1 paper
- Heidelberg UniversityDE1 paper
- Laboratório Nacional de AstrofísicaBR1 paper
- Spanish National ObservatoryES1 paper
- Turku Centre for Computer ScienceFI1 paper
- Universidade Federal de GoiásBR1 paper
15 papers
Totally Positive Matrices and the Highest-Order Coefficients of the Characteristic Polynomial
Tiago Closs, Leandro Farina
We investigate the extent to which totally positive matrices can be distinguished through the highest-order coefficients of their characteristic polynomials. To identify the most i…
NGC 6860, Mrk 915, and MCG -01-24-012. II. Inflowing and outflowing cold molecular gas and the connection with ionized gas in Seyfert galaxies
Bruno Dall'Agnol de Oliveira, Thaisa Storchi-Bergmann, Neil Nagar +5
We present a study of the cold molecular gas kinematics in the inner ~ 4-7 kpc (projected sizes) of three nearby Seyfert galaxies, with AGN luminosities of ~ 10 erg/s, using…
Analyzing the Effect of an Extreme Weather Event on Telecommunications and Information Technology: Insights from 30 Days of Flooding
Leandro Márcio Bertholdo, Renan Barreto Paredes, Gabriela de Lima Marin +2
In May 2024, weeks of severe rainfall in Rio Grande do Sul, Brazil caused widespread damage to infrastructure, impacting over 400 cities and 2.3 million people. This study presents…
Neuroevolution of Self-Attention Over Proto-Objects
Rafael C. Pinto, Anderson R. Tavares
Proto-objects - image regions that share common visual properties - offer a promising alternative to traditional attention mechanisms based on rectangular-shaped image patches in n…
Photonic entanglement with accelerated light
R. C. Souza Pimenta, G. H. dos Santos, A. B. Barreto +2
Accelerated light has been demonstrated with laser light and diffraction. Within the diffracting field it is possible to identify a portion that carries most of the beam energy, wh…
Metamaterial branes
F. A. P. Alves-Junior, A. B. Barreto, F. Moraes
In this article, we propose metamaterials analog brane models based on the geometric optics approach. We show how to model the Randall-Sundrum thin brane model and the Gremm model…