Birth of an arbitrary number of T-singularities in 3D piecewise smooth vector fields

Tiago de Carvalho; Bruno Freitas

doi:10.3934/dcdsb.2019034

Article Contents

2019, Volume 24, Issue 9: 4851-4861. Doi: 10.3934/dcdsb.2019034

This issue Previous Article Analysis of a stochastic SIRS model with interval parameters Next Article Mathematical analysis of cardiac electromechanics with physiological ionic model

Birth of an arbitrary number of T-singularities in 3D piecewise smooth vector fields

Tiago de Carvalho^1, , and
Bruno Freitas^2,

1.
Departamento de Computação e Matemática, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
2.
Universidade Federal de Goiás, IME, CEP 74001-970, Caixa Postal 131, Goiânia, Goiás, Brazil

^* Corresponding author: Tiago de Carvalho
^* Corresponding author: Tiago de Carvalho

Received: February 28, 2018

Revised: June 30, 2018

Early access: February 2019

Published: July 2019

The first author is partially supported by the CAPES grant number 1576689 (from the program PNPD) and also is grateful to the FAPESP/Brazil grants numbers 2013/34541-0 and 2017/00883-0, the CNPq-Brazil grant number 443302/2014-6 and the CAPES grant number 88881.030454/2013-01 (from the program CSF-PVE)

Abstract Full Text(HTML) Figure(5) Related Papers Cited by

Abstract

The T-singularity (invisible two-fold singularity) is one of the most intriguing objects in the study of 3D piecewise smooth vector fields. The occurrence of just one T-singularity already arouses the curiosity of experts in the area due to the wealth of behaviors that may arise in its neighborhood. In this work we show the birth of an arbitrary number, including infinite, of such singularities. Moreover, we are able to show the existence of an arbitrary number of limit cycles, hyperbolic or not, surrounding each one of these singularities.

Keywords:

Mathematics Subject Classification: Primary 34A36, 34A26, 37G15, 37G35.

Citation:

Full Text(HTML)

Figure 1. Return map of $ Z = (X,Y) $

Download: Full-size image PowerPoint slide

Figure 3. $ \Sigma- $centers at the T-singularities

Download: Full-size image PowerPoint slide

Figure 2. Topological cylinders

Download: Full-size image PowerPoint slide

Figure 4. Behavior of the orbits outside and inside of the planes

Download: Full-size image PowerPoint slide

Figure 5. Behavior at Theorems B and C

Download: Full-size image PowerPoint slide

Related Papers

Cited by

References

[1]	T. Carvalho and B. R. Freitas, Birth of isolated nested cylinders and limit cycles in 3D piecewise smooth vector fields with symmetry, preprint, arXiv: 1702.01306(2016).
[2]	T. Carvalho and M. A. Teixeira, Attractivity, degeneracy and codimension of a typical singularity in 3D piecewise smooth vector fields, Preprint, arXiv: 1508.00456.
[3]	T. Carvalho and D. J. Tonon, Normal forms for codimension one planar piecewise smooth vector fields, International Journal of Bifurcation and Chaos, 24 (2014), 1450090 (11 pages). doi: 10.1142/S0218127414500904.
[4]	A. Colombo and M. R. Jeffrey, The two-fold singularity of discontinuous vector fields, SIAM J. Appl. Dyn. Syst., 8 (2009), 624-640. doi: 10.1137/08073113X.
[5]	A Colombo and M. R. Jeffrey, Non-deterministic chaos, and the two fold singularity in piecewise smooth flows, SIAM J. Appl. Dyn. Syst., 10 (2011), 423-451. doi: 10.1137/100801846.
[6]	M. di Bernardo, C. J. Budd, A. R. Champneys and P. Kowalczyk, Piecewise-smooth Dynamical Systems - Theory and Applications, vol. 163 of Applied Mathematical Sciences. Springer-Verlag London, Ltd., London, 2008.
[7]	M. di Bernardo, A. Colombo and E. Fossas, Two-fold singularity in nonsmooth electrical systems, Proc. IEEE International Symposium on Circuits ans Systems, (2011), 2713–2716. doi: 10.1109/ISCAS.2011.5938165.
[8]	M. di Bernardo, A. Colombo, E. Fossas and M. R. Jeffrey, Teixeira singularities in 3D switched feedback control systems, Systems and Control Letters, 59 (2010), 615-622. doi: 10.1016/j.sysconle.2010.07.006.
[9]	A. F. Filippov, Differential Equations with Discontinuous Righthand Sides, Mathematics and its Applications (Soviet Series), Kluwer Academic Publishers-Dordrecht, 1988. doi: 10.1007/978-94-015-7793-9.
[10]	M. Guardia, T. M. Seara and M. A. Teixeira, Generic bifurcations of low codimension of planar Filippov systems, Journal of Differential Equations, 250 (2011), 1967-2023. doi: 10.1016/j.jde.2010.11.016.
[11]	A. Jacquemard, M. A. Teixeira and D. J. Tonon, Stability conditions in piecewise smooth dynamical systems at a two-fold singularity, Journal of Dynamical and Control Systems, 19 (2013), 47-67. doi: 10.1007/s10883-013-9164-9.
[12]	A. Jacquemard, M. A. Teixeira and D. J. Tonon, Piecewise smooth reversible dynamical systems at a two-fold singularity, International Journal of Bifurcation and Chaos, 22 (2012), 1250192, 13 pp. doi: 10.1142/S0218127412501921.
[13]	A. C. J. Luo, Discontinuous Dynamical Systems, Springer, 2012. doi: 10.1007/978-3-642-22461-4.
[14]	D. J. Simpson, Bifurcations in Piecewise-Smooth Continuous Systems, World Scientific Series on Nonlinear Science, Series A, 2010. doi: 10.1142/7612.
[15]	J. Sotomayor, Generic one-parameter families of vector fields on two-dimensional manifolds, Inst. Hautes Études Sci. Publ. Math., 43 (1974), 5-46.
[16]	M. A. Teixeira, Stability conditions for discontinuous vector fields, J. Differential Equations, 88 (1990), 15-29. doi: 10.1016/0022-0396(90)90106-Y.