Contributions to codimension k bifurcations in dynamical systems theory

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Pubblicazioni

On the Jacobi Stability of Two SIR Epidemic Patterns With Demography

Autori: Florian Munteanu
Pubblicato in: Symmetry, Numero 9, 2023, ISSN 2073-8994
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.20944/preprints202304.1139.v1

Dynamics and Darboux Integrability of the D2 Polynomial Vector Fields of Degree 2 in $\mathbb {R}^{3}$

Autori: Jean-Marc Ginoux; Jaume Llibre; Claudia Valls
Pubblicato in: Math. Phys. Anal. Geom., Numero 16, 2021, ISSN 1385-0172
Editore: Kluwer Academic Publishers
DOI: 10.1007/s11040-020-09372-0

Limit cycles on piecewise smooth vector fields with coupled rigid centers

Autori: Tiago Carvalho, Luiz Fernando Gonçalves, Jaume Llibre
Pubblicato in: Internat. J. Bifur. Chaos Appl. Sci. Engrg., Numero 16 issues/vol./yr., 2021, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s0218127421502242

On the limit cycles of a class of discontinuous piecewise linear differential systems

Autori: Jaume Llibre, Lucyjane de A. S. Menezes
Pubblicato in: Discrete & Continuous Dynamical Systems - B, Numero 25/5, 2020, Pagina/e 1835-1858, ISSN 1553-524X
Editore: American Institute of Mathematical Sciences
DOI: 10.3934/dcdsb.2020005

Stability and Bifurcations in a Nutrient–Phytoplankton–Zooplankton Model with Delayed Nutrient Recycling with Gamma Distribution

Autori: Mihaela Sterpu; Carmen Rocşoreanu; Raluca Efrem; Sue Ann Campbell
Pubblicato in: Mathematics, Vol 11, Iss 13, p 2911 (2023), Numero 21, 2023, ISSN 2227-7390
Editore: MDPI
DOI: 10.3390/math11132911

Criticality via first order development of the period constants

Autori: Iván Sánchez-Sánchez, Joan Torregrosa
Pubblicato in: Nonlinear Analysis, Numero 203, 2021, Pagina/e 112164, ISSN 0362-546X
Editore: Pergamon Press Ltd.
DOI: 10.1016/j.na.2020.112164

Analyzing the Jacobi Stability of Lü’s Circuit System

Autori: Munteanu, Florian
Pubblicato in: Symmetry, Numero 23, 2022, ISSN 2073-8994
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/sym14061248

Polynomial Liénard systems with a nilpotent global center

Autori: Isaac A. García; Jaume Llibre
Pubblicato in: Rendiconti del Circolo Matematico di Palermo Series 2, Numero 6, 2023, ISSN 0009-725X
Editore: Circolo Matematico di Palermo
DOI: 10.1007/s12215-022-00850-8

Phase Portraits of a Class of Continuous Piecewise Linear Differential Systems

Autori: Jie Li; Jaume Llibre
Pubblicato in: Differ. Equ. Dyn. Syst., Numero 1, 2023, ISSN 0971-3514
Editore: Research Square Publications
DOI: 10.1007/s12591-023-00666-7

Bifurcation of limit cycles in piecewise quadratic differential systems with an invariant straight line

Autori: L. P. C. da Cruz, J. Torregrosa, , Journal of Mathematical Analysis and Applications, 514 (2022) 126256.
Pubblicato in: Journal of Mathematical Analysis and Applications, Numero 514, 2022, ISSN 1096-0813
Editore: Elsevier
DOI: 10.1016/j.jmaa.2022.126256

A Study of the Jacobi Stability of the Rosenzweig–MacArthur Predator–prey System by the KCC Geometric Theory

Autori: Florian Munteanu
Pubblicato in: https://www.preprints.org/manuscript/202208.0129/v1, Numero 19, 2022, ISSN 2073-8994
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.20944/preprints202208.0129.v1

Limit Cycles Bifurcating from a Family of Reversible Quadratic Centers via Averaging Theory

Autori: Jaume Llibre; Arefeh Nabavi; Marzieh Mousavi
Pubblicato in: Internat. J. Bifur. Chaos Appl. Sci. Engrg., Numero 19, 2020, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s0218127420500510

Meromorphic integrability of the Hamiltonian systems with homogeneous potentials of degree -4

Autori: Jaume Llibre, Yuzhou Tian
Pubblicato in: Discrete Contin. Dyn. Syst. Ser. B, Numero 12 issues/vol./yr., 2021, ISSN 1531-3492
Editore: American Institute of Mathematical Sciences
DOI: 10.3934/dcdsb.2021228

A family of periodic orbits for the extended Hamiltonian system of the Van der Pol oscillator

Autori: Jean-Marc Ginoux, Jaume Llibre
Pubblicato in: J. Geom. Phys., Numero 12 vols./yr., 2023, ISSN 0393-0440
Editore: Elsevier BV
DOI: 10.1016/j.geomphys.2022.104705

Phase Portraits of the Leslie-Gower System

Autori: Llibre, Jaume||; Valls, Clàudia||
Pubblicato in: Acta Mathematica Scientia, Numero 9, 2022, ISSN 0252-9602
Editore: Kluwer Academic Publishers
DOI: 10.1007/s10473-022-0502-4

Analysis of a Class of Lotka–Volterra Systems

Autori: G Moza, D Constantinescu, R Efrem, L Bucur, R Constantinescu
Pubblicato in: Qualitative theory of dynamical systems, Numero 21, 2022, ISSN 1662-3592
Editore: Springer
DOI: 10.1007/s12346-022-00563-4

Piecewise linear differential systems with an algebraic line of separation

Autori: A. Gasull, J. Torregrosa, X. Zhang
Pubblicato in: Electronic Journal of Differential Equations, Numero 19, 2020, Pagina/e 1-14, ISSN 1072-6691
Editore: Texas State University - San Marcos

Phase Portraits of Families VII and VIII of the Quadratic Systems

Autori: Laurent Cairó; Jaume Llibre
Pubblicato in: Axioms, Numero 3, 2023, ISSN 2075-1680
Editore: MDPI
DOI: 10.3390/axioms12080756

Generalized analytic integrability of a class of polynomial differential systems in C2

Autori: Jaume Llibre, Yuzhou Tian
Pubblicato in: Acta Appl. Math., Numero 6 vols./yr, 2021, ISSN 0167-8019
Editore: Kluwer Academic Publishers
DOI: 10.1007/s10440-021-00407-4

Next in Surgical Data Science: Autonomous Non-Technical Skill Assessment in Minimally Invasive Surgery Training

Autori: Renáta Nagyné Elek; Tamás Haidegger
Pubblicato in: Journal of Clinical Medicine, Numero 6, 2022, ISSN 2077-0383
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/jcm11247533

About the Jacobi Stability of a Generalized Hopf–Langford System through the Kosambi–Cartan–Chern Geometric Theory

Autori: Florian Munteanu; Alexander Grin; Eduard Musafirov; Andrei Pranevich; Cătălin Şterbeţi
Pubblicato in: Symmetry, Numero 10, 2023, ISSN 2073-8994
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/sym15030598

LIMIT CYCLES OF THE DISCONTINUOUS PIECEWISE DIFFERENTIAL SYSTEMS ON THE CYLINDER

Autori: Li, Jie; Llibre, Jaume||
Pubblicato in: J. Appl. Anal. Comput., Numero 11, 2022, ISSN 2156-907X
Editore: Wilmington Sci. Publ. Shanghai Norm. Univ.
DOI: 10.11948/20220031

An analysis of two degenerate double-Hopf bifurcations

Autori: Gheorghe Moza, Mihaela Sterpu , Carmen Rocşoreanu
Pubblicato in: Electronic Research Archive, Numero 30, 2022, ISSN 2688-1594
Editore: AIMS Press
DOI: 10.3934/era.2022020

On the birth and death of algebraic limit cycles in quadratic differential systems

Autori: JAUME LLIBRE, REGILENE OLIVEIRA, YULIN ZHAO
Pubblicato in: European Journal of Applied Mathematics, Numero 32/2, 2021, Pagina/e 317-336, ISSN 0956-7925
Editore: Cambridge University Press
DOI: 10.1017/s0956792520000145

Dynamics of a four-dimensional economic model

Autori: G Moza, O Brandibur, A Găină
Pubblicato in: Mathematics, Numero 11, 2023, ISSN 2227-7390
Editore: MDPI
DOI: 10.3390/math11040797

Orbitally symmetric systems with applications to planar centers

Autori: Bastos, Jefferson L. R.||; Buzzi, Claudio||; Torregrosa, Joan||
Pubblicato in: Commun. Pure Appl. Anal., Numero 16, 2021, ISSN 1534-0392
Editore: American Institute of Mathematical Sciences
DOI: 10.3934/cpaa.2021107

Limit Cycles of a Class of Discontinuous Piecewise Differential Systems Separated by the Curve y = xn Via Averaging Theory

Autori: Zhifei Guo; Jaume Llibre
Pubblicato in: Internat. J. Bifur. Chaos Appl. Sci. Engrg., Numero 7, 2022, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s0218127422501875

The limit cycles of a class of piecewise differential systems

Autori: Imane Benabdallah, Rebiha Benterki, Jaume Llibre
Pubblicato in: Boletín de la Sociedad Matemática Mexicana, Numero 29, 2023, ISSN 1405-213X
Editore: Birkhäuser Verlag
DOI: 10.1007/s40590-023-00535-x

Analysis of a nonlinear financial model

Autori: G Moza, E Grecu, L Tirtirau
Pubblicato in: Carpathian Journal of Mathematics, Numero 38, 2022, ISSN 1843-4401
Editore: SINUS Association
DOI: 10.37193/cjm.2022.02.17

Analysis of a class of Kolmogorov systems

Autori: G. Tigan, C. Lazureanu, F. Munteanu, C. Sterbeti, A. Florea
Pubblicato in: Nonlinear Analysis: Real World Applications, Numero 57, 2021, ISSN 1878-5719
Editore: Elsevier
DOI: 10.1016/j.nonrwa.2020.103202

Global phase portraits of the key pitchfork bifurcation

Autori: Llibre Jaume; Li Shimin
Pubblicato in: SCIENTIA SINICA Mathematica, Numero 1, 2019, ISSN 2095-9427
Editore: SciEngine
DOI: 10.1360/scm-2018-0266

Integrability by separation of variables

Autori: Jaume Llibre, Rafael Orlando Ramirez
Pubblicato in: Phys. D, Numero 14, 2020, ISSN 0167-2789
Editore: Elsevier BV
DOI: 10.1016/j.physd.2020.132523

The zero-Hopf bifurcations in the Kolmogorov systems of degree 3 in R3

Autori: Érika Diz-Pita, Jaume Llibre, M. Victoria Otero-Espinar, Claudia Valls
Pubblicato in: Commun. Nonlinear Sci. Numer. Simul., Numero 12 vols./yr., 2021, ISSN 1007-5704
Editore: Elsevier BV
DOI: 10.1016/j.cnsns.2020.105621

A Comparative Study of Three Mathematical Models for the Interaction between the Human Immune System and a Virus

Autori: Florian Munteanu
Pubblicato in: Symmetry, Numero 21, 2022, ISSN 2073-8994
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.20944/preprints202207.0291.v1

Global dynamics of a Lotka–Volterra system in ℝ3

Autori: Llibre, J.; Paulina, Martínez; Valls, C.
Pubblicato in: The Journal of Nonlinear Mathematical Physics, Numero 8, 2020, ISSN 1402-9251
Editore: Luleaa University of Technology
DOI: 10.1080/14029251.2020.1757240

Inflation, Inflation Uncertainty and Fuel Prices in the EU

Autori: ALBULESCU CLAUDIU TIBERIU; STANCU STELIAN; GRECU EUGENIA; TRASCA DANIELA LIVIA
Pubblicato in: Economic Computation and Economic Cybernetics Studies and Research, Numero 2, 2022, ISSN 0424-267X
Editore: Bucharest University of Economic Studies
DOI: 10.24818/18423264/56.2.22.03

Dynamics of a family of Lotka–Volterra systems in R 3

Autori: Jaume Llibre, Y. Paulina Martínez
Pubblicato in: Nonlinear Analysis, Numero 199, 2020, Pagina/e 111915, ISSN 0362-546X
Editore: Pergamon Press Ltd.
DOI: 10.1016/j.na.2020.111915

Phase portraits of uniform isochronous centers with homogeneous nonlinearities

Autori: Jaume Llibre, Claudia Valls
Pubblicato in: J. Dyn. Control Syst., Numero 4 issues/vol./yr., 2021, ISSN 1079-2724
Editore: Plenum Publishers
DOI: 10.1007/s10883-021-09529-2

Bifurcation diagrams in a class of Kolmogorov systems

Autori: G. Tigan, C. Lazureanu, F. Munteanu, C. Sterbeti, A. Florea
Pubblicato in: Nonlinear Analysis: Real World Applications, Numero 56, 2020, ISSN 1878-5719
Editore: Elsevier
DOI: 10.1016/j.nonrwa.2020.103154

Nilpotent Center in a Continuous Piecewise Quadratic Polynomial Hamiltonian Vector Field

Autori: Ting Chen; Jaume Llibre
Pubblicato in: Internat. J. Bifur. Chaos Appl. Sci. Engrg., Numero 10, 2022, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s0218127422501164

Lower bounds for the number of limit cycles in a generalised Rayleigh–Liénard oscillator

Autori: Rodrigo D Euzébio; Jaume Llibre; Durval J Tonon
Pubblicato in: Nonlinearity, Numero 10, 2022, ISSN 0951-7715
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6544/ac7691

The 16th Hilbert problem for discontinuous piecewise isochronous centers of degree one or two separated by a straight line

Autori: M. Esteban; J. Llibre; C. Valls
Pubblicato in: Chaos, Numero 15, 2021, ISSN 1054-1500
Editore: American Institute of Physics
DOI: 10.1063/5.0023055

Degenerate Chenciner Bifurcation Revisited

Autori: G. Tigan, O. Brandibur, E. A. Kokovics, and L. F. Vesa
Pubblicato in: International Journal of Bifurcation and Chaos, Numero 31, 2021, ISSN 1793-6551
Editore: World Scientific
DOI: 10.1142/s0218127421501601

Limit cycles of discontinuous piecewise differential systems formed by linear centers in R 2 and separated by two circles

Autori: Maria Elisa Anacleto, Jaume Llibre, Claudia Valls, Claudio Vidal
Pubblicato in: Nonlinear Analysis: Real World Applications, Numero 60, 2021, Pagina/e 103281, ISSN 1468-1218
Editore: Elsevier BV
DOI: 10.1016/j.nonrwa.2020.103281

Final evolutions for simplified multistrain/two-stream model for tuberculosis and dengue fever

Autori: Jaume Llibre, Regilene D.S. Oliveira, Claudia Valls
Pubblicato in: Chaos, Solitons & Fractals, Numero 118, 2019, Pagina/e 181-186, ISSN 0960-0779
Editore: Pergamon Press Ltd.
DOI: 10.1016/j.chaos.2018.11.022

Global dynamics of the Buckingham’s two-body problem

Autori: Jaume Llibre, Claudia Valls, Claudio Vidal
Pubblicato in: Astrophysics and Space Science, Numero 363/12, 2018, Pagina/e Article 255, ISSN 0004-640X
Editore: Kluwer Academic Publishers
DOI: 10.1007/s10509-018-3475-y

Invariant Algebraic Surfaces and Hopf Bifurcation of a Finance Model

Autori: Murilo R. Cândido, Jaume Llibre, Claudia Valls
Pubblicato in: International Journal of Bifurcation and Chaos, Numero 28/12, 2018, Pagina/e 1850150, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s021812741850150x

Phase portraits of continuous piecewise linear Liénard differential systems with three zones

Autori: Shimin Li, Jaume Llibre
Pubblicato in: Chaos, Solitons & Fractals, Numero 120, 2019, Pagina/e 149-157, ISSN 0960-0779
Editore: Pergamon Press Ltd.
DOI: 10.1016/j.chaos.2018.12.037

Bounded polynomial vector fields in R 2 and R n

Autori: Luis Barreira, Jaume Llibre, Claudia Valls
Pubblicato in: Journal of Differential Equations, Numero 268/8, 2020, Pagina/e 4416-4422, ISSN 0022-0396
Editore: Academic Press
DOI: 10.1016/j.jde.2019.10.023

Approximations of the Heteroclinic Orbits Near a Double-Zero Bifurcation with Symmetry of Order Two. Application to a Liénard Equation

Autori: Carmen Rocşoreanu, Mihaela Sterpu
Pubblicato in: International Journal of Bifurcation and Chaos, Numero 29/06, 2019, Pagina/e 1950074, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s0218127419500743

Nilpotent Global Centers of Linear Systems with Cubic Homogeneous Nonlinearities

Autori: J. D. García-Saldaña, Jaume Llibre, Claudia Valls
Pubblicato in: International Journal of Bifurcation and Chaos, Numero 30/01, 2020, Pagina/e 2050010, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s0218127420500108

Topological entropy of continuous self-maps on closed surfaces

Autori: Juan Luis García Guirao, Jaume Llibre, Wei Gao
Pubblicato in: Journal of Difference Equations and Applications, Numero 26/2, 2020, Pagina/e 203-208, ISSN 1023-6198
Editore: Taylor & Francis
DOI: 10.1080/10236198.2019.1710141

Limit cycles created by piecewise linear centers

Autori: Jaume Llibre, Xiang Zhang
Pubblicato in: Chaos: An Interdisciplinary Journal of Nonlinear Science, Numero 29/5, 2019, Pagina/e 053116, ISSN 1054-1500
Editore: American Institute of Physics
DOI: 10.1063/1.5086018

Limit cycles in 4-star-symmetric planar piecewise linear systems

Autori: Claudio A. Buzzi, Joao C. Medrado, Joan Torregrosa
Pubblicato in: Journal of Differential Equations, Numero 268/5, 2020, Pagina/e 2414-2434, ISSN 0022-0396
Editore: Academic Press
DOI: 10.1016/j.jde.2019.09.008

Bifurcations from families of periodic solutions in piecewise differential systems

Autori: Jaume Llibre, Douglas D. Novaes, Camila A.B. Rodrigues
Pubblicato in: Physica D: Nonlinear Phenomena, Numero 404, 2020, Pagina/e 132342, ISSN 0167-2789
Editore: Elsevier BV
DOI: 10.1016/j.physd.2020.132342

Limit cycles for two classes of control piecewise linear differential systems

Autori: Jaume Llibre, Regilene D. Oliveira, Camila Ap. B. Rodrigues
Pubblicato in: São Paulo Journal of Mathematical Sciences, Numero 36, 2020, Pagina/e 1-17, ISSN 1982-6907
Editore: Springer
DOI: 10.1007/s40863-020-00163-7

Stability and bifurcation analysis of a four-dimensional economic model

Autori: G Moza, C Rocşoreanu, M Sterpu, R Oliveira
Pubblicato in: Carpathian Journal of Mathematics, Numero 40, 2024, ISSN 1843-4401
Editore: SINUS Association
DOI: 10.37193/cjm.2024.01.10

Another Case of Degenerated Discrete Chenciner Dynamic System and Economics

Autori: Sorin Lugojan; Loredana Ciurdariu; Eugenia Grecu
Pubblicato in: Mathematics, Numero 16, 2022, ISSN 2227-7390
Editore: MDPI
DOI: 10.3390/math10203782

Nonexistence and Uniqueness of Limit Cycles in a Class of Three-Dimensional Piecewise Linear Differential Systems

Autori: Ting Chen; Lihong Huang; Jaume Llibre
Pubblicato in: Internat. J. Bifur. Chaos Appl. Sci. Engrg., Numero 5, 2023, ISSN 0218-1274
Editore: World Scientific Publishing Co
DOI: 10.1142/s021812742350075x

Analysis of Degenerate Chenciner Bifurcation

Autori: G. Tigan, S. Lugojan, and L. Ciurdariu
Pubblicato in: International Journal of Bifurcation and Chaos, Numero 30, 2020, ISSN 1793-6551
Editore: World Scientific
DOI: 10.1142/s0218127420502454

The Limit Cycles of Discontinuous Piecewise Linear Differential Systems Formed by Centers and Separated by Irreducible Cubic Curves II

Autori: Rebiha Benterki; Loubna Damene; Jaume Llibre
Pubblicato in: Differ. Equ. Dyn. Syst., Numero 16, 2021, ISSN 0971-3514
Editore: Research Square Publications
DOI: 10.1007/s12591-021-00564-w

On the Bifurcations of a 3D Symmetric Dynamical System

Autori: Dana Constantinescu
Pubblicato in: Symmetry, Numero 9, 2023, ISSN 2073-8994
Editore: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/sym15040923

Limit cycles in piecewise polynomial systems allowing a non-regular switching boundary

Autori: Tao Li; Jaume Llibre
Pubblicato in: Physica D. Nonlinear phenomena, Numero 15, 2021, ISSN 0167-2789
Editore: Elsevier BV
DOI: 10.1016/j.physd.2021.132855

Transcritical bifurcation at infinity in planar piecewise polynomial differential systems with two zones

Autori: Denis de Carvalho Braga, Jaume Llibre, Luis Fernando Mello
Pubblicato in: Dynamical Systems. An International Journal, Numero 4 issues/vol./yr., 2022, ISSN 1468-9367
Editore: Taylor & Francis
DOI: 10.1080/14689367.2022.2092454

On topological entropy, Lefschetz numbers and Lefschetz zeta functions

Autori: Jaume Llibre, Victor F. Sirvent
Pubblicato in: General Topology and Appl., Numero 4 issues/vol./yr., 2019, ISSN 0016-660X
Editore: North-Holland
DOI: 10.1016/j.topol.2019.106906

Output, Uncertainty and Fuel Prices in the EU Countries

Autori: Pârtachi Ion Profir; Grecu Eugenia; Albulescu Claudiu Tiberiu; Stancu Stelian; Trasca Daniela Livia
Pubblicato in: Economic Computation and Economic Cybernetics Studies and Research, Numero 4, 2020, ISSN 0424-267X
Editore: Instrumentul Bibliometric National
DOI: 10.24818/18423264/54.1.20.02

The 16th Hilbert Problem for Discontinuous Piecewise Linear Differential Systems Separated by the Algebraic Curve $$y=x^{n}$$

Autori: Jaume Llibre, Claudia Valls
Pubblicato in: Mathematical Physics, Analysis and Geometry, Numero 26, 2023, ISSN 1385-0172
Editore: Kluwer Academic Publishers
DOI: 10.1007/s11040-023-09467-4

Global centers of a family of cubic systems

Autori: Appis, Raul Felipe; Llibre, Jaume
Pubblicato in: Aequationes mathematicae, Numero 1, 2024, ISSN 0001-9054
Editore: Birkhauser Verlag
DOI: 10.1007/s00010-024-01051-7

Global Dynamics of the Hořava–Lifshitz Cosmological Model in a Non-Flat Universe with Non-Zero Cosmological Constant

Autori: Fabao Gao; Jaume Llibre
Pubblicato in: Universe, Numero 14, 2021, ISSN 2218-1997
Editore: MDPI
DOI: 10.3390/universe7110445

Limit cycles of piecewise polynomial differential systems with the discontinuity line xy = 0

Autori: Tao Li, Jaume Llibre
Pubblicato in: Commun. Pure Appl. Anal., Numero 12 issues/vol./yr., 2021, ISSN 1534-0392
Editore: American Institute of Mathematical Sciences
DOI: 10.3934/cpaa.2021136

The solution of the second part of the 16th Hilbert problem for nine families of discontinuous piecewise differential systems

Autori: Rebiha Benterki, Jaume Llibre
Pubblicato in: Nonlinear Dynam., Numero 16 issues/4 vols./yr., 2020, ISSN 0924-090X
Editore: Kluwer Academic Publishers
DOI: 10.1007/s11071-020-06045-z

Chenciner Bifurcation Presenting a Further Degree of Degeneration

Autori: Sorin Lugojan; Loredana Ciurdariu; Eugenia Grecu
Pubblicato in: Mathematics, Numero 26, 2022, ISSN 2227-7390
Editore: MDPI
DOI: 10.3390/math10091603

Criteria on the existence of limit cycles in planar polynomial differential systems

Autori: Jaume Giné; Maite Grau; Jaume Llibre
Pubblicato in: Expositiones Mathematicae, Numero 7, 2022, ISSN 0723-0869
Editore: Elsevier BV
DOI: 10.1016/j.exmath.2022.09.002

Analysis of interactions between human immune system and a pathogenic virus

Autori: G Moza, LV Vesa
Pubblicato in: Carpathian Journal of Mathematics, Numero 39, 2023, ISSN 1843-4401
Editore: SINUS Association
DOI: 10.37193/cjm.2023.02.06

Coexistence of chaotic attractor and unstable limit cycles in a 3D dynamical system

Autori: Constantinescu, Dana; Tigan, Gheorghe; Zhang, Xiang
Pubblicato in: Open Research Europe, Numero 41, 2021, ISSN 2732-5121
Editore: European Commission
DOI: 10.12688/openreseurope.13590.1

The limit cycles of the Higgins-Selkov systems

Autori: Hebai Chen, Jaume Llibre, Yilei Tang
Pubblicato in: J. Nonlinear Sci., Numero 6 issues/vol./yr., 2021, ISSN 0938-8974
Editore: Springer Verlag
DOI: 10.1007/s00332-021-09742-0

A mathematical model of infectious disease transmission

Autori: Florea Aurelia; Lăzureanu Cristian
Pubblicato in: ITM Web of Conferences, Numero 62, 2020, ISSN 2271-2097
Editore: EDP Sciences
DOI: 10.1051/itmconf/20203402002

A study of a three-dimensional competitive Lotka–Volterra system

Autori: Munteanu Florian
Pubblicato in: ITM Web of Conferences, Vol 34, p 03010 (2020), Numero 55, 2020, ISSN 2271-2097
Editore: EDP Sciences
DOI: 10.1051/itmconf/20203403010

The study of a fourth-order differential equation: existence, uniqueness and a dynamical system approach

Autori: Danet Cristian Paul
Pubblicato in: ITM Web of Conferences, Numero 34, 2020, ISSN 2271-2097
Editore: EDP Sciences
DOI: 10.1051/itmconf/20203403005

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