Browsing Exact and Earth Sciences by Author "Freire, Joana G."
Now showing items 1-4 of 4
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Multistability, phase diagrams, and intransitivity in the Lorenz-84 low-order atmospheric circulation model
Freire, Joana G.; Bonatto, Cristian; DaCamara, Carlos C.; Gallas, Jason Alfredo Carlson (2008) [Journal article]We report phase diagrams detailing the intransitivity observed in the climate scenarios supported by a prototype atmospheric general circulation model, namely, the Lorenz-84 low-order model. So far, this model was known ... -
Non-Shilnikov cascades of spikes and hubs in a semiconductor laser with optoelectronic feedback
Freire, Joana G.; Gallas, Jason Alfredo Carlson (2010) [Journal article]Incomplete homoclinic scenarios were recently measured in a semiconductor laser with optoelectronic feedback. We show here that such a laser contains cascades of spirals of periodic oscillations and hubs which look identical ... -
Relative abundance and structure of chaotic behavior : the nonpolynomial Belousov-Zhabotinsky reaction kinetics
Freire, Joana G.; Field, Richard J.; Gallas, Jason Alfredo Carlson (2009) [Journal article]We report a detailed numerical investigation of the relative abundance of periodic and chaotic oscillations in phase diagrams for the Belousov–Zhabotinsky (BZ) reaction as described by a nonpolynomial, autonomous, ... -
Spatial updating, spatial transients, and regularities of a complex automaton with nonperiodic architecture
Freire, Joana G.; Brison, Owen J.; Gallas, Jason Alfredo Carlson (2007) [Journal article]We study the dynamics of patterns exhibited by rule 52, a totalistic cellular automaton displaying intricate behaviors and wide regions of active/inactive synchronization patches. Systematic computer simulations involving ...