4 citations · 5 across the 4 of their papers we have counts for
4 papers
A Study of Pc4-5 Geomagnetic Pulsations in the Brazilian Sector
David Oliva, Marcela C. Meirelles, Andrés R. R. Papa
This paper presents a study of Pc4-5 geomagnetic pulsations illustrated by those which were observed after the sudden commencement of May 02 of 2010 at 09 : 08 UT at the Brazilian…
Daily Variations of the Geomagnetic Field in the Brazilian zone
David Oliva, Marco A. Espírito Santo, Andrés R. R. Papa
The solar quiet daily variation (Sq) was investigated with respect to the longitudinal and seasonal variations at the Brazilian geomagnetic ground stations of Tatuoca (TTB), Vassou…
A generalized Bak-Sneppen model for Earth's magnetic field reversals
Andres R. R. Papa, Marco A. do Espirito Santo, Cleiton S. Barbosa +1
We introduce a simple model for Earth's magnetic field reversals. The model consists in random nodes simulating vortices in the liquid part of the core which through a simple updat…
The Bose Gas Low Momentum Limit Revisited
H. Perez Rojas, D. Oliva
We discuss the standard approach to the problem of the low momentum limit of the spectrum for a weakly interacting Bose gas. The Bogoliubov's spectrum is shown to be obtained as a…