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A geometria do disco de Poincaré
(Universidade Tecnológica Federal do ParanáCuritibaBrasilLicenciatura em MatemáticaUTFPR, 2021-06-21)
In this work, we discuss the history of non-Euclidean geometries, emphasizing a model of hyperbolic geometry in the plane: the Poincaré disk. We relate some results in this geometry to results from Euclidean geometry, such ...
Mergulhos isométricos do plano hiperbólico em espaços EuclidianosIsometric embeddings of the hyperbolic plane in Euclidean spaces
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em MatemáticaCiências Exatas e da TerraUFU, 2016)
Geometrias não-Euclidianas no plano e geometria esférica
(Universidade Tecnológica Federal do ParanáCuritibaBrasilLicenciatura em MatemáticaUTFPR, 2018-12-10)
We talk in this work about non-Euclidean geometries, emphasizing in the plane the Poincaré disk model and, in three dimensions, the spherical geometry. In this geometry, we determined some important results, such as the ...
Análise global de sistemas diferenciais polinomiaisGlobal analysis of polynomial differential systems
(Universidade Federal de ViçosaMatemática, 2022)
Global dynamics of the Rikitake system
(Elsevier B.V., 2009-02-01)
The Rikitake system is a three dimensional vector field obtained experimentally from a two-disk dynamo apparatus, which models the geomagnetic field and is used to explain the known irregular switch in its polarity. The ...
Global dynamics of the Rikitake system
(Elsevier B.V., 2009-02-01)
The Rikitake system is a three dimensional vector field obtained experimentally from a two-disk dynamo apparatus, which models the geomagnetic field and is used to explain the known irregular switch in its polarity. The ...
Bifurcations of the Riccati Quadratic Polynomial Differential Systems
(World Scientific Publ Co Pte Ltd, 2021-05-01)
In this paper, we characterize the global phase portrait of the Riccati quadratic polynomial differential system (x) over dot = alpha(2) (x), (y) over dot = ky(2) + beta(1)(x)y + -gamma(2)(x), with (x,y) is an element of ...
Análise global de sistemas quadráticos e cúbicos com duas circunferências não-concêntricas invariantes
(Universidade Estadual Paulista (UNESP), 2014)
Análise global de sistemas quadráticos e cúbicos com duas circunferências não-concêntricas invariantes
(Universidade Estadual Paulista (Unesp), 2014)
Global dynamics of the Rikitake system
(Elsevier B.V., 2014)