Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Maurício Fronza da Silva"'
Autor:
Maurício Fronza da Silva, Jaume Llibre
Publikováno v:
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Universitat Autònoma de Barcelona
We classify the phase portraits of the quadratic polynomial differential systems having an invariant parabola, an invariant straight line, and a Darboux first integral produced by these two invariant curves. Nous classifions les portraits de phase de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c3a43498047a677f7b19fd348e34af6
https://ddd.uab.cat/record/221370
https://ddd.uab.cat/record/221370
Publikováno v:
2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG).
This paper describes the implementation of a supervisory system for wind turbine inverters, that incorporates into the frequency inverter the characteristics of the relays necessary for microgeneration. As a result, the inverter added value is increa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::347b0fd5783c590b71f996f9b0bf2cfc
https://doi.org/10.1109/pedg.2017.7972503
https://doi.org/10.1109/pedg.2017.7972503
Publikováno v:
Journal of Differential Equations. 253(3):933-950
F. Treves, in [17] , using a notion of convexity of sets with respect to operators due to B. Malgrange and a theorem of C. Harvey, characterized globally solvable linear partial differential operators on C ∞ ( X ) , for an open subset X of R n . Le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8c49e510a7e289d349dadc4d01ad2d2
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
In this article we deal with Gevrey global solvability of non-singular first-order operators defined on an n-dimensional s-Gevrey manifold, s > 1. As done by Duistermaat and Hormander in the C∞ framework, we show that Gevrey global solvability is e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30db4490ba3e60640bc5dec804fa77ee
https://doi.org/10.1007/s10231-011-0221-2
https://doi.org/10.1007/s10231-011-0221-2
Publikováno v:
Journal of Differential Equations. 247:2688-2704
F. Treves, in [17], using a notion of convexity of sets with respect to operators due to B. Malgrange and a theorem of C. Harvey, characterized globally solvable linear partial differential operators on C∞(X), for an open subset X of Rn.Let P=L+c b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::676e5cbbb5c8c14c28388f194e3a84b3
https://doi.org/10.1016/j.jde.2009.08.017
https://doi.org/10.1016/j.jde.2009.08.017
Autor:
Jaume Llibre, Maurício Fronza da Silva
Publikováno v:
Topol. Methods Nonlinear Anal. 48, no. 1 (2016), 257-282
We provide 22 different global phase portraits in the Poincaré disk of all centers of the so-called Kukles polynomial differential systems of the form $\dot{x} = -y$, $\dot{y} = x+Q_5(x,y)$, where $Q_5$ is a real homogeneous polynomial of degree 5 d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f392ab25ec9a3fe8e9bf29709c2aff61
https://doi.org/10.12775/tmna.2016.049
https://doi.org/10.12775/tmna.2016.049
Autor:
Maurício Fronza da Silva, Jaume Llibre
Publikováno v:
International Journal of Bifurcation and Chaos. 26:1650044
We provide the nine topological global phase portraits in the Poincaré disk of the family of the centers of Kukles polynomial differential systems of the form [Formula: see text] [Formula: see text] where [Formula: see text] and [Formula: see text]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c6c475f89dddf5616d07fc676307051
https://doi.org/10.1142/s0218127416500449
https://doi.org/10.1142/s0218127416500449
Autor:
Lorena Soriano Hernandez
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Esta dissertação expõe sobre a resolubilidade do campo vetorial complexo L = ∂ /∂t +(a(x) + ib(x))∂/∂x, b ≢ 0 definido em Ωε = (-ε, ε) × S1, ε > 0, perto do conjunto característico Σ = {0} × S1, sendo a e b funções de classe C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6d7ce8805d6fe369d58c7fc325d818f
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Seja L = ∂ /∂t + (a(x) + ib(x))∂/∂x, b ≢ 0, um campo vetorial complexo definido em A∊ = (-∊ , ∊) × S1, ∊ > 0, sendo a, b ∈ C∞((-∊ , ∊);ℝ) e (x, t) ∈ (-∊ ∊) × S1. Assuma que b-1(0) = {0}. Este trabalho trata da reso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a59fe5b7c025033f2a8a045a47d90172
https://doi.org/10.11606/t.55.2014.tde-19112014-094736
https://doi.org/10.11606/t.55.2014.tde-19112014-094736