414 citations
- Universidade de São PauloBR13 papers
- Instituto Nacional de Pesquisas EspaciaisBR11 papers
- Shanghai Jiao Tong UniversityCN10 papers
- Technical University of MunichDE10 papers
- Universidade de BrasíliaBR10 papers
- Universidade Federal de Campina GrandeBR10 papers
- University College LondonGB10 papers
- Yangzhou UniversityCN10 papers
- Instituto de Aeronáutica e EspaçoBR9 papers
- Rhodes UniversityZA9 papers
- Instituto Tecnológico de AeronáuticaBR7 papers
- Shanghai Astronomical ObservatoryCN7 papers
45 papers
Local null controllability of a quasi-linear system and related numerical experiments
Enrique Fernández-Cara, Juan Límaco, Yuri Thamsten +1
This paper concerns the null control of quasi-linear parabolic systems where the diffusion coefficient depends on the gradient of the state variable. In our main theoretical result…
Comparing an Ensemble Kalman Filter to a 4DVAR Data Assimilation System in Chaotic Dynamics
Fabrício Pereira Harter, Cleber Souza Corrêa
In this paper, the Ensemble Kalman Filter is compared with a 4DVAR Data Assimilation System in chaotic dynamics. The Lorenz model is chosen for its simplicity in structure and its…
Multidecadal Cycles of the Climatic Index: Sunspots that Affect North and Northeast of Brazil
Cleber Souza Corrêa, Roberto Lage Guedes, André Muniz Marinho da Rocha +1
Using the 1951--2017 historical series of the Atlantic Meridional Mode (AMM) index and the monthly number of sunspots, it was possible to observe a significant association between…
The Long-Range Memory and the Fractal Dimension: a Case Study for Alcântara
Cleber Souza Correa, Daniel Andrade Schuch, Antonio Paulo de Queiroz +3
This study aimed to analyze the time series behavior of the Southern Oscillation Index through techniques using Fast Fourier Transform, computing the autocorrelation function, and…
Resonant Raman Scattering and Optical Absorption Studies of Zn(II) Impurities in L-Alanine Single Crystal
A. Nonato, G. G. S. Teles, C. C. Silva +5
We present a study of low-concentration Zn (II) impurities in L-Alanine Single Crystal (ZNLA) employing resonant Raman scattering and optical absorption spectroscopy. By analyzing…
Few operators on Banach spaces
Leandro Candido
Using Ostaszewski's -principle, we construct a non-metrizable, locally compact, scattered space in which the operators on the Banach space exhibit…