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1

Controllable Hopf bifurcations of codimension 1 and 2 in nonlinear control systems

Denis de Carvalho Braga, Luis Fernando Mello, Carmen Rocşoreanu, Mihaela Sterpu

Journal:

Nonlinear Analysis: Theory, Methods & Applications

Année:

2011

Langue:

english

Fichier:

PDF, 285 KB

english, 2011

2

Control of planar Bautin bifurcation

Denis de Carvalho Braga, Luis Fernando Mello, Carmen Rocşoreanu, Mihaela Sterpu

Journal:

Nonlinear Dynamics

Année:

2010

Langue:

english

Fichier:

PDF, 1.37 MB

english, 2010

3

Lyapunov coefficients for an invisible fold-fold singularity in planar piecewise Hamiltonian systems

de Carvalho Braga, Denis, Fernandes da Fonseca, Alexander, Gonçalves, Luiz Fernando, Mello, Luis Fernando

Journal:

Journal of Mathematical Analysis and Applications

Année:

2019

Langue:

english

Fichier:

PDF, 1.10 MB

english, 2019

4

Stability and Hopf bifurcation in an hexagonal governor system

Jorge Sotomayor, Luis Fernando Mello, Denis de Carvalho Braga

Journal:

Nonlinear Analysis: Real World Applications

Année:

2008

Langue:

english

Fichier:

PDF, 311 KB

english, 2008

5

Bifurcation analysis of a model for biological control

Jorge Sotomayor, Luis Fernando Mello, Danilo Braun Santos, Denis de Carvalho Braga

Journal:

Mathematical and Computer Modelling

Année:

2008

Langue:

english

Fichier:

PDF, 405 KB

english, 2008

6

On the stability of the equilibria of the Rikitake system

Denis de Carvalho Braga, Fabio Scalco Dias, Luis Fernando Mello

Journal:

Physics Letters A

Année:

2010

Langue:

english

Fichier:

PDF, 152 KB

english, 2010

7

Phase Vortex: A Dynamical System Approach

Luis Fernando Mello, Denis de Carvalho Braga

Journal:

Mathematical Physics, Analysis and Geometry

Année:

2008

Langue:

english

Fichier:

PDF, 566 KB

english, 2008

8

Limit cycles in a family of discontinuous piecewise linear differential systems with two zones in the plane

Denis de Carvalho Braga, Luis Fernando Mello

Journal:

Nonlinear Dynamics

Année:

2013

Langue:

english

Fichier:

PDF, 395 KB

english, 2013

9

More Than Three Limit Cycles in Discontinuous Piecewise Linear Differential Systems with Two Zones in the Plane

Braga, Denis De Carvalho, Mello, Luis Fernando

Journal:

International Journal of Bifurcation and Chaos

Année:

2014

Langue:

english

Fichier:

PDF, 455 KB

english, 2014

10

A STUDY OF THE COEXISTENCE OF THREE TYPES OF ATTRACTORS IN AN AUTONOMOUS SYSTEM

DE CARVALHO BRAGA, DENIS, MELLO, LUIS FERNANDO

Journal:

International Journal of Bifurcation and Chaos

Année:

2013

Langue:

english

Fichier:

PDF, 253 KB

english, 2013

11

CONTROLLABLE HOPF BIFURCATIONS OF CODIMENSIONS ONE AND TWO IN LINEAR CONTROL SYSTEMS

DE CARVALHO BRAGA, DENIS, MELLO, LUIS FERNANDO, ROCŞOREANU, CARMEN, STERPU, MIHAELA

Journal:

International Journal of Bifurcation and Chaos

Année:

2011

Langue:

english

Fichier:

PDF, 286 KB

english, 2011

12

DEGENERATE HOPF BIFURCATIONS IN CHUA'S SYSTEM

MESSIAS, MARCELO, DE CARVALHO BRAGA, DENIS, MELLO, LUIS FERNANDO

Journal:

International Journal of Bifurcation and Chaos

Année:

2009

Langue:

english

Fichier:

PDF, 1.41 MB

english, 2009

13

Nonhyperbolic Periodic Orbits of Vector Fields in the Plane Revisited

Braga, Denis de Carvalho, Mello, Luis Fernando, Zambroni de Souza, Antonio Carlos

Journal:

Abstract and Applied Analysis

Année:

2013

Langue:

english

Fichier:

PDF, 410 KB

english, 2013

14

Nonlinear analysis in a modified van der Pol oscillator

de Carvalho Braga, Denis, de Faria, Nivaldo Gonçalves, Mello, Luis Fernando

Journal:

Applied Mathematics and Computation

Année:

2014

Langue:

english

Fichier:

PDF, 830 KB

english, 2014

15

The matching of two stable sewing linear systems in the plane

Braga, Denis de Carvalho, da Fonseca, Alexander Fernandes, Mello, Luis Fernando

Journal:

Journal of Mathematical Analysis and Applications

Année:

2016

Langue:

english

Fichier:

PDF, 566 KB

english, 2016

16

Hopf Bifurcations in a Watt Governor with a Spring

Sotomayor, Jorge, Mello, Luis Fernando, Braga, Denis de Carvalho

Journal:

Journal of Nonlinear Mathematical Physics

Année:

2008

Langue:

english

Fichier:

PDF, 341 KB

english, 2008

17

Bifurcation analysis of the Watt governor system

Sotomayor, Jorge, Mello, Luis Fernando, Braga, Denis de Carvalho

Journal:

Année:

2007

Langue:

english

Fichier:

PDF, 299 KB

english, 2007

18

Melnikov functions and limit cycles in piecewise smooth perturbations of a linear center using regularization method

de Carvalho Braga, Denis, da Fonseca, Alexander Fernandes, Mello, Luis Fernando

Journal:

Nonlinear Analysis: Real World Applications

Année:

2017

Langue:

english

Fichier:

PDF, 568 KB

english, 2017

19

Comparison among mathematical models of the photovoltaic cell for computer simulation purposes

Tofoli, Fernando Lessa, Pereira, Denis de Castro, Josias De Paula, Wesley, Moreira Vicente, Eduardo, Vicente, Paula dos Santos, Braga, Henrique Antonio Carvalho

Journal:

International Journal of Electronics

Année:

2017

Langue:

english

Fichier:

PDF, 2.58 MB

english, 2017

20

[IEEE 2016 12th IEEE International Conference on Industry Applications (INDUSCON) - Curitiba, PR, Brazil (2016.11.20-2016.11.23)] 2016 12th IEEE International Conference on Industry Applications (INDUSCON) - SPICE simulation and evaluation of a GaN-based synchronous full-bridge resonant converter

de Castro Pereira, Denis, de Paula, Wesley Josias, Braga, Henrique Antonio Carvalho

Année:

2016

Langue:

english

Fichier:

PDF, 724 KB

english, 2016

21

Limit cycles bifurcating from discontinuous centres

Braga, Denis de Carvalho, Carvalho, Tiago, Mello, Luis Fernando

Journal:

IMA Journal of Applied Mathematics

Année:

2017

Langue:

english

Fichier:

PDF, 311 KB

english, 2017

22

Bifurcation Analysis of a Van der Pol-Duffing Circuit with Parallel Resistor

Braga, Denis de Carvalho, Mello, Luis Fernando, Messias, Marcelo

Journal:

Mathematical Problems in Engineering

Année:

2009

Langue:

english

Fichier:

PDF, 3.76 MB

english, 2009

23

Limit Cycles Bifurcating from an Invisible FoldâFold in Planar Piecewise Hamiltonian Systems

de Carvalho Braga, Denis, Fernandes da Fonseca, Alexander, GonÃ§alves, Luiz Fernando, Mello, Luis Fernando

Journal:

Journal of Dynamical and Control Systems

Année:

2020

Fichier:

PDF, 1015 KB

2020

24

[IEEE 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC) - Santos, Brazil (2019.12.1-2019.12.4)] 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC) - Active Cooling and Thermal Simulation Applied to an Extra-High Current COB LED

de Castro Pereira, Denis, Campos Marques, Rubio, Almeida, Pedro Santos, Soares, Guilherme Marcio, Tofoli, Fernando Lessa, Tavares, Pedro Laguardia, Carvalho Braga, Henrique Antonio

Année:

2019

Fichier:

PDF, 887 KB

2019

25

[IEEE 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC) - Santos, Brazil (2019.12.1-2019.12.4)] 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC) - Efficiency Analysis for Interleaved Buck Converters Employed as Extra-High Current COB LED Drivers

Castro Pereira, Denis de, Bernard Figueiredo Rabelo, Everton, Almeida, Pedro Santos, Marcio Soares, Guilherme, Tofoli, Fernando Lessa, Antonio Carvalho Braga, Henrique

Année:

2019

Fichier:

PDF, 1.41 MB

2019