DOI10.1142/S0218127403006352zbMath1063.34026MaRDI QIDQ4653787
Ji-Bin Li
Publication date: 8 March 2005
Published in: International Journal of Bifurcation and Chaos (Search for Journal in Brave)
LOCAL AND GLOBAL BIFURCATIONS TO LIMIT CYCLES IN A CLASS OF LIÉNARD EQUATION,
PERIODIC CONSTANTS AND TIME-ANGLE DIFFERENCE OF ISOCHRONOUS CENTERS FOR COMPLEX ANALYTIC SYSTEMS,
HOPF BIFURCATIONS FOR NEAR-HAMILTONIAN SYSTEMS,
ON THE NUMBER AND DISTRIBUTION OF LIMIT CYCLES IN A CUBIC SYSTEM,
LIMIT CYCLE BIFURCATIONS IN NEAR-HAMILTONIAN SYSTEMS BY PERTURBING A NILPOTENT CENTER,
Lower bounds for the cyclicity of centers of quadratic three-dimensional systems,
The extended 16th Hilbert problem for a class of discontinuous piecewise differential systems,
Counting configurations of limit cycles and centers,
The 16th Hilbert problem for discontinuous piecewise linear differential systems separated by the algebraic curve \(y = x^n\),
Probability of existence of limit cycles for a family of planar systems,
On the Poincaré-Bendixson index theorem for a class of piecewise linear differential systems,
Nilpotent bi-center in continuous piecewise \(\mathbb{Z}_2\)-equivariant cubic polynomial Hamiltonian systems,
On the 16th Hilbert problem for discontinuous piecewise polynomial Hamiltonian systems,
Limit cycles of continuous piecewise differential systems separated by a parabola and formed by a linear center and a quadratic center,
Bifurcation and number of periodic solutions of some \(2n\)-dimensional systems and its application,
The solution of the second part of the 16th Hilbert problem for nine families of discontinuous piecewise differential systems,
Bifurcation of multiple periodic solutions for a class of nonlinear dynamical systems in \((m+4)\)-dimension,
Some properties of Melnikov functions near a cuspidal loop,
The limit cycles of a class of piecewise differential systems,
Limit cycle enumeration in random vector fields,
Nine limit cycles around a weak focus in a class of three-dimensional cubic Kukles systems,
Configuration of planar Kolmogorov cubic polynomial differential systems with the most centers,
On the cubic Kukles systems with an algebraic limit cycle of degree two,
Integrability and linearizability of symmetric three-dimensional quadratic systems,
Bifurcation of limit cycles from a Liénard system with asymmetric figure eight-loop case,
Bifurcation of limit cycles near a heteroclinic loop with nilpotent cusps,
Bifurcation of limit cycles and isochronous centers on center manifolds for four‐dimensional systems,
Cyclicity of rigid centres on centre manifolds of three-dimensional systems,
The limit cycles of discontinuous piecewise linear differential systems formed by centers and separated by irreducible cubic curves. II,
Global dynamics of a Wilson polynomial Liénard equation,
Limit Cycle Bifurcations from an Order-3 Nilpotent Center of Cubic Hamiltonian Systems Perturbed by Cubic Polynomials,
THE CENTER-FOCUS PROBLEM AND BIFURCATION OF LIMIT CYCLES IN A CLASS OF 7TH-DEGREE POLYNOMIAL SYSTEMS,
LIMIT CYCLE BIFURCATION FOR A NILPOTENT SYSTEM IN <i>Z</i><sub>3</sub>-EQUIVARIANT VECTOR FIELD,
Classical Planar Algebraic Curves Realizable by Quadratic Polynomial Differential Systems,
Unnamed Item,
Unnamed Item,
UPPER BOUNDS FOR THE ASSOCIATED NUMBER OF ZEROS OF ABELIAN INTEGRALS FOR TWO CLASSES OF QUADRATIC REVERSIBLE CENTERS OF GENUS ONE,
Bifurcations of limit cycles from quintic Hamiltonian systems with a double figure eight loop,
Maximum Number of Small Limit Cycles in Some Rational Liénard Systems with Cubic Restoring Terms,
Cyclicity of a Class of Hamiltonian Systems under Perturbations of Piecewise Smooth Polynomials,
On the limit cycle bifurcation of a polynomial system from a global center,
Abelian integrals and limit cycles,
Centers and Limit Cycles of a Generalized Cubic Riccati System,
TWELVE LIMIT CYCLES IN A CUBIC CASE OF THE 16th HILBERT PROBLEM,
BIFURCATIONS OF LIMIT CYCLES IN A Z2-EQUIVARIANT PLANAR POLYNOMIAL VECTOR FIELD OF DEGREE 7,
Bifurcations in a Cubic System with a Degenerate Saddle Point,
On the Limit Cycles of a Perturbed Z3-Equivariant Planar Quintic Vector Field,
Bifurcation of Limit Cycles from a Quasi-Homogeneous Degenerate Center,
The Cyclicity of a Cubic System,
Limit Cycles for a Class of Polynomial Differential Systems Via Averaging Theory,
ON THE NUMBER OF LIMIT CYCLES FOR A QUINTIC LIÉNARD SYSTEM UNDER POLYNOMIAL PERTURBATIONS,
BIFURCATION OF LIMIT CYCLES FROM A COMPOUND LOOP WITH FIVE SADDLES,
Some Bifurcation Analysis in a Family of Nonsmooth Liénard Systems,
The number and distributions of limit cycles for a class of cubic near-Hamiltonian systems,
Analytic integrability of some examples of degenerate planar vector fields,
Bifurcations of limit cycles in a \(Z_6\)-equivariant planar vector field of degree 7,
Limit cycles coming from some uniform isochronous centers,
Bifurcation of a piecewise smooth cubic system via expansion of Melnikov function,
Eighteen limit cycles around two symmetric foci in a cubic planar switching polynomial system,
Analytic integrability inside a family of degenerate centers,
On the number of limit cycles for perturbed pendulum equations,
Limit cycles for perturbing Hamiltonian system inside piecewise smooth polynomial differential system,
Periodic solutions of linear, Riccati, and Abel dynamic equations,
Limit cycle bifurcations in a class of piecewise smooth systems with a double homoclinic loop,
On the limit cycles of planar polynomial system with non-rational first integral via averaging method at any order,
Computation of focus values with applications,
New criteria for the monotonicity of the ratio of two abelian integrals,
Bifurcation of limit cycles for a quartic near-Hamiltonian system by perturbing a nilpotent center,
Bifurcation of limit cycles by perturbing piecewise smooth integrable non-Hamiltonian systems,
Quantities at infinity in translational polynomial vector fields,
Bifurcation of small limit cycles in \(Z_{5}\)-equivariant planar vector fields of order 5,
Bifurcation of limit cycles in a quintic system with ten parameters,
The number of limit cycles of cubic Hamiltonian system with perturbation,
On the number of limit cycles bifurcating from a non-global degenerated center,
Isochronicity of a \(\mathbb{Z}_2\)-equivariant quintic system,
Efficient methods in the search for periodic oscillations in dynamical systems,
A criterion for the existence of four limit cycles in quadratic systems,
Invariant parallels, invariant meridians and limit cycles of polynomial vector fields on some 2-dimensional algebraic tori in \(\mathbb R^3\),
Center, limit cycles and isochronous center of a \(Z_{4}\)-equivariant quintic system,
Generalized isochronous centers for complex systems,
Necessary and sufficient conditions for the boundedness of solutions to two-dimensional quadratic systems in a positively invariant half-plane,
Four limit cycles in quadratic two-dimensional systems with a perturbed first-order weak focus,
The bifurcation of limit cycles in \(Z_n\)-equivariant vector fields,
Bifurcation of limit cycles at infinity in a class of switching systems,
Bifurcations of limit cycles for a perturbed quintic Hamiltonian system with four infinite singular points,
Local bifurcation of limit cycles and integrability of a class of nilpotent systems,
Cyclicity versus center problem,
New results on the study of \(Z_q\)-equivariant planar polynomial vector fields,
Bifurcation of limit cycles in cubic integrable \(Z_{2}\)-equivariant planar vector fields,
On the number of limit cycles of a \(\mathbb{Z}_4\)-equivariant quintic near-Hamiltonian system,
Bifurcation of ten small-amplitude limit cycles by perturbing a quadratic Hamiltonian system with cubic polynomials,
Lyapunov quantities and limit cycles of two-dimensional dynamical systems. Analytical methods and symbolic computation,
Existence, number, and stability of limit cycles in weakly dissipative, strongly nonlinear oscillators,
Bifurcation theory for finitely smooth planar autonomous differential systems,
Center problem and bifurcation behavior for a class of quasi analytic systems,
Bifurcation of limit cycles from a hyper-elliptic Hamiltonian system with a double heteroclinic loops,
Sufficient and necessary center conditions for the Poincaré systems \(P(2, 2n) (n \leq 5)\),
Integrability and pseudo-linearizable conditions in a quasi-analytic system,
On the number of limit cycles in small perturbations of a class of hyper-elliptic Hamiltonian systems with one nilpotent saddle,
Limit cycles, invariant meridians and parallels for polynomial vector fields on the torus,
Weak-foci of high order and cyclicity,
Bifurcation of limit cycles at infinity in piecewise polynomial systems,
Bifurcation set and number of limit cycles in \(Z_{2}\)-equivariant planar vector fields of degree 5,
Symbolic computation and the cyclicity problem for singularities,
On the limit cycles of a class of piecewise linear differential systems in \(\mathbb R^4\) with two zones,
Simultaneous bifurcation of limit cycles from a cubic piecewise center with two period annuli,
Bifurcation of limit cycles and pseudo-isochronous center at degenerate singular point in a septic system,
Perturbation of a period annulus bounded by a heteroclinic loop connecting two hyperbolic saddles,
A direct method for calculating Lyapunov quantities of two-dimensional dynamical systems,
Bifurcations of limit cycles in equivariant quintic planar vector fields,
Melnikov function and limit cycle bifurcation from a nilpotent center,
A quartic system and a quintic system with fine focus of order 18,
The same distribution of limit cycles in a Hamiltonian system with nine seven-order perturbed terms,
Limit cycles bifurcated from some \(Z_4\)-equivariant quintic near-Hamiltonian systems,
A new method for research on the center-focus problem of differential systems,
\(Z_{2}\)-equivariant cubic system which yields 13 limit cycles,
On the number of limit cycles in discontinuous piecewise linear differential systems with two pieces separated by a straight line,
On Melnikov functions of a homoclinic loop through a nilpotent saddle for planar near-Hamiltonian systems,
Lower bounds for the Hilbert number of polynomial systems,
Limit cycles for a class of continuous and discontinuous cubic polynomial differential systems,
Existence of 121 limit cycles in a perturbed planar polynomial Hamiltonian vector field of degree 11,
On the zeros of the Abelian integrals for a class of Liénard systems,
Uniqueness and non-uniqueness of limit cycles for piecewise linear differential systems with three zones and no symmetry,
Parallelization of the Lyapunov constants and cyclicity for centers of planar polynomial vector fields,
Limit cycles in generalized Liénard systems,
Approximating the amplitude and form of limit cycles in the weakly nonlinear regime of Liénard systems,
Integrability conditions of a resonant saddle in Liénard-like complex systems,
Limit cycle bifurcations for piecewise smooth integrable differential systems,
Limit cycles near homoclinic and heteroclinic loops,
Bifurcations of limit cycles in a \(Z_{4}\)-equivariant planar polynomial vector field of degree 7,
Bifurcation of limit cycles from a heteroclinic loop with a cusp,
On Hopf bifurcation in non-smooth planar systems,
Bifurcations of limit cycles in a \(Z_{4}\)-equivariant quintic planar vector field,
Bifurcation of limit cycles and pseudo-isochronicity at degenerate singular point in a septic system,
Analysis and synthesis of oscillator systems described by perturbed single well Duffing equations,
Estimating the number of limit cycles in polynomial systems,
On the perturbations of a Hamiltonian system,
Bifurcations of limit cycles from infinity for a class of quintic polynomial system,
On the number of limit cycles of a \(Z_{4}\)-equivariant quintic polynomial system,
On the number of critical periods for planar polynomial systems of arbitrary degree,
Symbolic computation of limit cycles associated with Hilbert's 16th problem,
Detection function method and its application to a class of quintic Hamiltonian systems with quintic perturbations,
Bifurcation of limit cycles near equivariant compound cycles,
Geometric criterium in the center problem,
Hopf and homoclinic bifurcations for near-Hamiltonian systems,
Evaluation of the first five Lyapunov exponents for the Liénard system,
Limit cycles of the Liénard equation with discontinuous coefficients,
Limit cycles bifurcating from the period annulus of quasi-homogeneous centers,
On the focus order of planar polynomial differential equations,
A cubic system with thirteen limit cycles,
Limit cycles of a \(Z_3\)-equivariant near-Hamiltonian system,
Bifurcation of limit cycles from a 4-dimensional center in \(\mathbb R^m\) in resonance \(1:N\),
On the configurations of centers of planar Hamiltonian Kolmogorov cubic polynomial differential systems,
Limit cycle bifurcations for a kind of Liénard system with degree seven,
Bifurcation of limit cycles at degenerate singular point and infinity in a septic system,
Bifurcations of limit cycles in a cubic system,
Limit cycle bifurcations by perturbing a cuspidal loop in a Hamiltonian system,
The problem of general center-focus and bifurcation of limit cycles for a planar system of nine degrees,
The cyclicity of a class of global nilpotent center under perturbations of piecewise smooth polynomials with four zones,
Bifurcations of limit cycles from quintic Hamiltonian systems with an eye-figure loop. II,
Estimate of the number of zeros of abelian integrals for a kind of quartic Hamiltonians with two centers,
Computation of Lyapunov values for two planar polynomial differential systems,
Local cyclicity and criticality in FF-type piecewise smooth cubic and quartic Kukles systems,
Small limit cycles bifurcating from fine focus points in quartic order \(Z_{3}\)-equivariant vector fields,
On the number of limit cycles of a cubic polynomials Hamiltonian system under quintic perturbation,
A cubic system with twelve small amplitude limit cycles,
General center conditions and bifurcation of limit cycles for a quasi-symmetric seventh degree system,
Local bifurcation and center problem for a more generalized Lorenz system,
Four limit cycles of discontinuous piecewise differential systems with nilpotent saddles separated by a straight line,
Bi-center problem for some classes of \(\mathbb{Z}_2\)-equivariant systems,
Restricted independence in displacement function for better estimation of cyclicity,
Averaging approach to cyclicity of Hopf bifurcation in planar linear-quadratic polynomial discontinuous differential systems,
Bifurcations of limit circles and center conditions for a class of non-analytic cubic \(Z_2\) polynomial differential systems,
Analysis and synthesis of oscillator systems described by a perturbed double-well Duffing equation,
Bifurcations of small limit cycles in Liénard systems with cubic restoring terms,
A new approach for the study of limit cycles,
Hilbert's sixteenth problem for polynomial Liénard equations,
Darboux integrability for polynomial vector fields invariant under action of finite group,
Bifurcation diagram and global phase portraits of a family of quadratic vector fields in class \(I\),
Small amplitude limit cycles and local bifurcation of critical periods for a quartic Kolmogorov system,
Visualization of four normal size limit cycles in two-dimensional polynomial quadratic system,
Qualitative analysis of crossing limit cycles in a class of discontinuous Liénard systems with symmetry,
On the centers of cubic polynomial differential systems with four invariant straight lines,
Bifurcation of limit cycles and pseudo-isochronicity at infinity in a septic polynomial vector field,
Bifurcation of limit cycles in quadratic Hamiltonian systems with various degree polynomial perturbations,
The cyclicity of the period annulus of the cubic isochronous center,
Bifurcation of limit cycles of a class of piecewise linear differential systems in \(\mathfrak R^4\) with three zones,
Bifurcation of limit cycles by perturbing piecewise non-Hamiltonian systems with nonlinear switching manifold,
The zero-Hopf bifurcations in the Kolmogorov systems of degree 3 in \(\mathbb{R}^3\),
Bifurcation of limit cycles near heteroclinic loops in near-Hamiltonian systems,
Nine limit cycles in a 5-degree polynomials Liénard system,
A proof of Euzébio-Pazim-Ponce's conjectures for a degenerate planar piecewise linear differential system with three zones,
Limit cycles of a second-order differential equation,
Proof of Artés-Llibre-Valls's conjectures for the Higgins-Selkov and the Selkov systems,
Limit cycles bifurcating from a degenerate center,
The limit cycles of the Higgins-Selkov systems,
Cyclicity of some analytic maps,
Nine limit cycles around a singular point by perturbing a cubic Hamiltonian system with a nilpotent center,
Limit cycles appearing from a generalized heteroclinic loop with a cusp and a nilpotent saddle,
\(Z_2\)-equivariant linear type bi-center cubic polynomial Hamiltonian vector fields,
On the independent perturbation parameters and the number of limit cycles of a type of Liénard system,
Double bifurcation for a cubic Kolmogorov model,
Limit cycle bifurcations near a double homoclinic loop with a nilpotent saddle of order \(m\),
Criticality via first order development of the period constants,
On the birth of limit cycles for non-smooth dynamical systems,
Existence of limit cycles in general planar piecewise linear systems of saddle-saddle dynamics,
On the number of zeros of Abelian integrals for a polynomial Hamiltonian irregular at infinity,
Lie-Hamilton systems on the plane: properties, classification and applications,
Bifurcations of limit cycles for a cubic Hamiltonian system under quartic perturbations,
Perturbation from a cubic Hamiltonian with three figure eight-loops,
On the cyclicity of a 2-polycycle for quadratic systems,
The number of limit cycles of a polynomial system on the plane,
Limit cycle bifurcations of some Liénard systems,
Perturbation from an asymmetric cubic Hamiltonian,
Small limit cycles bifurcating from fine focus points in cubic order \(Z_{2}\)-equivariant vector fields,
On the number of limit cycles in general planar piecewise linear systems of node-node types,
Poincaré bifurcation of a three-dimensional system,
Local bifurcations and codimension-3 degenerate bifurcations of a quintic nonlinear beam under parametric excitation,
On the limit cycles surrounding a diagonalizable linear node with homogeneous nonlinearities,
Limit cycles of discontinuous piecewise differential systems formed by linear centers in \(\mathbb{R}^2\) and separated by two circles,
Bi-center problem and Hopf cyclicity of a cubic Liénard system,
Limit cycles for a discontinuous quintic polynomial differential system,
On the number of zeros of abelian integral for a class of cubic Hamilton systems with the phase portrait ``butterfly, Center problem and the bifurcation of limit cycles for a cubic polynomial system, On the number of limit cycles for generic Lotka-Volterra system and Bogdanov-Takens system under perturbations of piecewise smooth polynomials, Limit cycles of a Liénard system with symmetry allowing for discontinuity, On the Melnikov functions and limit cycles near a double homoclinic loop with a nilpotent saddle of order \(\hat{m} \), A survey on algebraic and explicit non-algebraic limit cycles in planar differential systems, Invariant algebraic curves and hyperelliptic limit cycles of Liénard systems, Limit cycles of piecewise differential equations on the cylinder, Poincaré bifurcation of limit cycles from a Liénard system with a homoclinic loop passing through a nilpotent saddle, Bifurcation and number of subharmonic solutions of a \(2n\)-dimensional non-autonomous system and its application, Twelve limit cycles around a singular point in a planar cubic-degree polynomial system, Bifurcation of limit cycles in a piecewise smooth near-integrable system, The dynamics of a kind of Liénard system with sixth degree and its limit cycle bifurcations under perturbations, Limit cycles of piecewise polynomial differential systems with the discontinuity line \(xy = 0\), Revisiting limit cycles for 3-monomial differential equations, Hopf bifurcation in 3-dimensional polynomial vector fields, First-order perturbation for multi-parameter center families, Some open problems in low dimensional dynamical systems, Bifurcations of limit cycles in complex networks of Hamiltonian systems and Lloyd's conjecture, Melnikov functions of arbitrary order for piecewise smooth differential systems in \(\mathbb{R}^n\) and applications, Limit cycles in piecewise polynomial systems allowing a non-regular switching boundary, Symbolic computation for the qualitative theory of differential equations, Two limit cycles in Liénard piecewise linear differential systems, Essential perturbations of polynomial vector fields with a period annulus, The number of limit cycles for regularized piecewise polynomial systems is unbounded, Integrability and generalized center problem of resonant singular point, On the abelian integrals of quadratic reversible centers with orbits formed by genus one curves of higher degree, Limit cycles for 3-monomial differential equations, Quasi-Lie families, schemes, invariants and their applications to Abel equations, On the number of limit cycles in piecewise smooth generalized Abel equations with two asymmetric zones, Non-existence, existence, and uniqueness of limit cycles for a generalization of the van der Pol-Duffing and the Rayleigh-Duffing oscillators, On Hilbert’s 16th Problem for Some Discontinuous Piecewise Differential Systems, Twenty-Six Crossing Limit Cycles Around One Singular Point in a Cubic Switching System, Limit Cycles of a Class of Discontinuous Piecewise Differential Systems Separated by the Curve y = xn Via Averaging Theory, Equivalence of the Melnikov function method and the averaging method, Medium Amplitude Limit Cycles of Some Classes of Generalized Liénard Systems, On the Number of Limit Cycles for Discontinuous Generalized Liénard Polynomial Differential Systems, On the birth and death of algebraic limit cycles in quadratic differential systems, The 16th Hilbert problem restricted to circular algebraic limit cycles, Simultaneous bifurcation of limit cycles from a linear center with extra singular points, Limit Cycles of Continuous Piecewise Differential Systems Formed by Linear and Quadratic Isochronous Centers I, Limit Cycles from Hopf Bifurcation in Nongeneric Quadratic Reversible Systems with Piecewise Perturbations, On the bifurcations of a Hamiltonian having three homoclinic loops under \(\mathbb Z_{3}\) invariant quintic perturbations, Bifurcation Analysis of Planar Piecewise Smooth Systems with a Line of Discontinuity, On the Limit Cycles Bifurcating from Piecewise Quasi-Homogeneous Differential Center, Twelve Limit Cycles in 3D Quadratic Vector Fields with Z3 Symmetry, Simultaneity of centres in ℤ q -equivariant systems, On the Limit Cycles of the Polynomial Differential Systems with a Linear Node and Homogeneous Nonlinearities, Sharp bound of the number of zeros for a Liénard system with a heteroclinic loop, Limit Cycles of Piecewise-Continuous Differential Systems Formed by Linear and Quadratic Isochronous Centers II, An Improvement on the Number of Limit Cycles Bifurcating from a Nondegenerate Center of Homogeneous Polynomial Systems, The planar discontinuous piecewise linear refracting systems have at most one limit cycle, Loop Numbers for the Stability of Homoclinic Loops of Planar Vector Fields, Unnamed Item, An algorithmic approach to small limit cycles of nonlinear differential systems: the averaging method revisited, ON THE NUMBER OF ZEROS OF THE ABELIAN INTEGRALS FOR A CLASS OF PERTURBED LIÉNARD SYSTEMS, Limit Cycle Bifurcations for Piecewise Smooth Hamiltonian Systems with a Generalized Eye-Figure Loop, General study on limit cycle bifurcation near a double homoclinic loop, Bifurcation of limit cycles and isochronous centers on center manifolds for a class of cubic Kolmogorov systems in \(\mathbb{R}^3\), ON THE NUMBER OF LIMIT CYCLES IN NEAR-HAMILTONIAN POLYNOMIAL SYSTEMS, On the Number of Limit Cycles Bifurcating from a Compound Polycycle, Limit Cycles for a Class of Zp-Equivariant Differential Systems, Bifurcation of limit cycles from a Liénard system with a heteroclinic loop connecting two nilpotent saddles, Bifurcation of Limit Cycles in a 12-Degree Hamiltonian System Under Thirteenth-Order Perturbation, Global dynamics of a degenerate planar piecewise linear differential system with three zones, BIFURCATION OF LIMIT CYCLES IN A FOURTH-ORDER NEAR-HAMILTONIAN SYSTEM, Limit cycles bifurcating from a quadratic reversible Lotka-Volterra system with a center and three saddles, Analytic integrability for some degenerate planar vector fields, ON THE NUMBER AND DISTRIBUTIONS OF LIMIT CYCLES IN A QUINTIC PLANAR VECTOR FIELD, Unnamed Item, Limit Cycles for Discontinuous Planar Piecewise Linear Differential Systems Separated by an Algebraic Curve, Limit cycles of the generalized polynomial Liénard differential equations, On the limit cycles of a quintic planar vector field, Limit Cycle Bifurcations by Perturbing a Hamiltonian System with a 3-Polycycle Having a Cusp of Order One or Two, Conditions of infinity to be an isochronous centre for a rational differential system, LIMIT CYCLE BIFURCATIONS NEAR A DOUBLE HOMOCLINIC LOOP WITH A NILPOTENT SADDLE, GENERALIZED HOPF BIFURCATION IN A FREQUENCY DOMAIN FORMULATION, HOPF BIFURCATION OF LIÉNARD SYSTEMS BY PERTURBING A NILPOTENT CENTER, FOUR LIMIT CYCLES FROM PERTURBING QUADRATIC INTEGRABLE SYSTEMS BY QUADRATIC POLYNOMIALS, Bifurcation and isochronicity at infinity in a class of cubic polynomial vector fieldss, The number and distributions of limit cycles for a class of quintic near-Hamiltonian systems, ASYMPTOTIC EXPANSIONS OF MELNIKOV FUNCTIONS AND LIMIT CYCLE BIFURCATIONS, Limit cycles from a four-dimensional centre inℝmin resonancep : q, Analysis and synthesis of oscillator systems described by perturbed double hump Duffing equations, Topological classification of polynomial complex differential equations with all the critical points of centre type, The inverse integrating factor and the Poincaré map, On limit cycles of the Liénard equation with \(Z_2\) symmetry, Linear estimate of the number of limit cycles for a class of nonlinear systems, Analysis on bifurcations of multiple limit cycles for a parametrically and externally excited mechanical system, New configurations of 24 limit cycles in a quintic system, BIFURCATION OF LIMIT CYCLES IN Z10-EQUIVARIANT VECTOR FIELDS OF DEGREE 9, Bifurcations of limit cycles from quintic Hamiltonian systems with an eye-figure loop, Abelian integrals and period functions for quasihomogeneous Hamiltonian vector fields, Bifurcation of limit cycles in a quintic Hamiltonian system under a sixth-order perturbation, Perturbations of non-Hamiltonian reversible quadratic systems with cubic orbits, CRITICAL PERIODS OF THIRD-ORDER PLANAR HAMILTONIAN SYSTEMS, Bifurcations of limit cycles in a cubic system with cubic perturbations, ON THE CONTROL OF PARAMETERS OF DISTRIBUTIONS OF LIMIT CYCLES FOR A Z2-EQUIVARIANT PERTURBED PLANAR HAMILTONIAN POLYNOMIAL VECTOR FIELD, A cubic polynomial system with seven limit cycles at infinity, Analysis on limit cycles of \(Z_{q}\)-equivariant polynomial vector fields with degree 3 or 4, On Uniqueness of Limit Cycles in General Bogdanov–Takens Bifurcation, EXISTENCE CONDITIONS OF THIRTEEN LIMIT CYCLES IN A CUBIC SYSTEM, Integrability of Lotka–Volterra Planar Complex Cubic Systems, Estimating the Number of Zeros for Abelian Integrals of Quadratic Reversible Centers with Orbits Formed by Higher-Order Curves, On the Distribution of Limit Cycles in a Liénard System with a Nilpotent Center and a Nilpotent Saddle, Bifurcation of limit cycles from a centre in ℝ4in resonance 1:N, Thirteen limit cycles for a class of cubic Hamiltonian system with higher-order perturbed terms, A quintic polynomial differential system with eleven limit cycles at the infinity, Bifurcations of the limit cycles in a \(z_3\)-equivariant quartic planar vector field, A LINEAR ESTIMATION TO THE NUMBER OF ZEROS FOR ABELIAN INTEGRALS IN A KIND OF QUADRATIC REVERSIBLE CENTERS OF GENUS ONE, A Chebyshev criterion for Abelian integrals, Birth of limit cycles for a class of continuous and discontinuous differential systems in (d+ 2)–dimension, CENTER PROBLEM AND MULTIPLE HOPF BIFURCATION FOR THE Z6-EQUIVARIANT PLANAR POLYNOMIAL VECTOR, FIELDS OF DEGREE 5, CRITICAL PERIODS OF PLANAR REVERTIBLE VECTOR FIELD WITH THIRD-DEGREE POLYNOMIAL FUNCTIONS, CENTER PROBLEM AND MULTIPLE HOPF BIFURCATION FOR THE Z5-EQUIVARIANT PLANAR POLYNOMIAL VECTOR FIELDS OF DEGREE 5, THE SEPARATRIX VALUES OF A PLANAR HOMOCLINIC LOOP, The 16th Hilbert problem for discontinuous piecewise isochronous centers of degree one or two separated by a straight line, Limit Cycles of a Kind of Nonsmooth Differential Systems with Two Switching Lines, Maximum number of limit cycles for generalized Liénard polynomial differential systems, Simultaneity of centres in double-reversible planar differential systems, ON THE NUMBER OF ZEROS OF ABELIAN INTEGRAL FOR A CUBIC ISOCHRONOUS CENTER, ON THE MAXIMUM NUMBER OF LIMIT CYCLES OF A CLASS OF GENERALIZED LIÉNARD DIFFERENTIAL SYSTEMS, LIMIT CYCLE BIFURCATIONS FROM CENTERS OF SYMMETRIC HAMILTONIAN SYSTEMS PERTURBED BY CUBIC POLYNOMIALS, BIFURCATIONS OF LIMIT CYCLES FOR A PERTURBED CUBIC SYSTEM WITH DOUBLE FIGURE EIGHT LOOP, ON THE NUMBER AND DISTRIBUTIONS OF LIMIT CYCLES OF A PLANAR QUARTIC VECTOR FIELD, EIGHT LIMIT CYCLES AROUND A CENTER IN QUADRATIC HAMILTONIAN SYSTEM WITH THIRD-ORDER PERTURBATION, AN EXPLICIT RECURSIVE FORMULA FOR COMPUTING THE NORMAL FORM AND CENTER MANIFOLD OF GENERAL n-DIMENSIONAL DIFFERENTIAL SYSTEMS ASSOCIATED WITH HOPF BIFURCATION, CYCLICITY OF PERIOD ANNULUS OF A QUADRATIC REVERSIBLE SYSTEM WITH DEGENERATE CRITICAL POINT, Regularization of Planar Piecewise Smooth Systems with a Heteroclinic Loop, AN APPLICATION OF REGULAR CHAIN THEORY TO THE STUDY OF LIMIT CYCLES, BIFURCATION OF LIMIT CYCLES AND ISOCHRONOUS CENTERS FOR A QUARTIC SYSTEM
- On the uniqueness of limit cycles surrounding one or more singularities for Liénard equations
- COMPLEX TOPOLOGICAL CHARACTERISTICS OF REAL ALGEBRAIC CURVES
- On General Properties of Quadratic Systems
- An explicit bound for the multiplicity of zeros of generic Abelian integrals
- A Cubic System with Eight Small-Amplitude Limit Cycles
- Degenerate Hopf bifurcation in two dimensions
- Limit Cycles in a Cubic System with a Cusp
- A Global Analysis of the Bogdanov–Takens System
- THE TOPOLOGY OF REAL PROJECTIVE ALGEBRAIC VARIETIES
- Linear estimate for the number of zeros of Abelian integrals with cubic Hamiltonians
- Small-amplitude limit cycle bifurcations for Liénard systems with quadratic or cubic damping or restoring forces
- Nonoscillation of Elliptic Integrals Related to Cubic Polynomials with Symmetry of Order Three
- Elementary graphics of cyclicity 1 and 2
- Complete Abelian integrals as rational envelopes
- On the Number of Limit Cycles in Perturbations of Quadratic Hamiltonian Systems
- Bifurcation of Limit Cycles from Centers and Separatrix Cycles of Planar Analytic Systems
- Degenerate and non-trivial hyperbolic 2-polycycles: appearance of two independent Ecalle-Roussarie compensators and Khovanskii's theory
- Invariant algebraic curves and conditions for a centre
- Phase portraits of planar semi-homogeneous vector fields-I
- Differential Equations Defined by the Sum of two Quasi-Homogeneous Vector Fields
- Bifurcation of limit cycles and the cusp of ordern
- Qualitative theory of two-dimensional polynomial dynamical systems: Problems, approaches, conjectures
- Hilbert's 16-th problem for quadratic vector fields and cyclicity of graphics
- On the nonexistence, existence and uniqueness of limit cycles
- Hilbert's 16th problem for quadratic systems and cyclicity of elementary graphics
- The focus-centre problem for a type of degenerate system
- Linear estimate for the number of zeros of Abelian integrals for quadratic isochronous centres
- On the limit cycles of polynomial differential systems with homogeneous nonlinearities
- Non-autonomous equations related to polynomial two-dimensional systems
- Degenerate Hopf Bifurcation Formulas and Hilbert’s 16th Problem
- INVESTIGATIONS OF BIFURCATIONS OF LIMIT CYCLES IN Z2-EQUIVARIANT PLANAR VECTOR FIELDS OF DEGREE 5
- Second-order analysis in polynomially perturbed reversible quadratic Hamiltonian systems
- Eleven small limit cycles in a cubic vector field
- Polynomial systems: a lower bound for the Hilbert numbers
- On a certain generalization of Bautin's theorem
- Successive derivatives of a first return map, application to the study of quadratic vector fields
- Algorithmic Derivation of Centre Conditions
- LIMIT CYCLES IN HIGHLY NON-LINEAR DIFFERENTIAL EQUATIONS
- SOME BIFURCATION DIAGRAMS FOR LIMIT CYCLES OF QUADRATIC DIFFERENTIAL SYSTEMS
- BIFURCATIONS OF LIMIT CYCLES IN A Z3-EQUIVARIANT VECTOR FIELD OF DEGREE 5
- Reduction of Singularities of the Differential Equation Ady = Bdx
- THE ORIGIN OF LIMIT CYCLES UNDER PERTURBATION OF THE EQUATIONdw/dz= -Rz/Rw, WHERER(z,w) IS A POLYNOMIAL
- Hopf bifurcation at the nonzero foci in 1∶4 resonance
- Complex zeros of an elliptic integral
- Hilbert's sixteenth problem
- On hereditarily indecomposable Banach spaces
- The shape of limit cycles that bifurcate from non-Hamiltonian centers
- Link theory and new restrictions for \(M\)-curves of degree nine
- Ergodicity of limit cycles in quadratic systems
- Existence of at most 1, 2, or 3 zeros of a Melnikov function and limit cycles
- Perturbations of the non-generic quadratic Hamiltonian vector fields with hyperbolic segment
- Perturbations from an elliptic Hamiltonian of degree four. II: Cuspidal loop
- The Hilbert-Arnold problem and an estimate of the cyclicity of polycycles of the plane and in space
- Perturbations from an elliptic Hamiltonian of degree four. I: Saddle loop and two saddle cycles
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- Further considerations on the number of limit cycles of vector fields of the form \(X(v)=Av+f(v)Bv\)
- Computing integrability conditions for a cubic differential system
- Bifurcation at infinity in polynomial vector fields
- Distribution of ovals of the real plane of algebraic curves, of involutions of four-dimensional smooth manifolds, and the arithmetic of integer-valued quadratic forms
- On the structure of Poincaré-Lyapunov constants for the weak focus of polynomial vector fields
- M-curves of degree 10
- Limit cycles of quadratic systems in the plane
- A new class of quadratic systems
- Bifurcation of limit cycles from quadratic isochrones
- REDUCE and the bifurcation of limit cycles
- Configurations of fans and nests of limit cycles for polynomial vector fields in the plane
- Algebraic and topological classification of the homogeneous cubic vector fields in the plane
- A codimension two bifurcation with a third order Picard-Fuchs equation
- Estimate of the number of zeros of an Abelian integral depending on a parameter and limit cycles
- Real analytic varieties with the finiteness property and complex abelian integrals
- On a class of complete polynomial vector fields in the plane
- Keeping track of limit cycles
- Limit cycles of vector fields of the form \(X(v)=Av+f(v)Bv\)
- A note on: Abelian integrals and bifurcation theory
- Bifurcations of certain family of planar vector fields tangent to axes
- The Chebyshev property of elliptic integrals
- Elliptic integrals and their nonoscillation
- Limit cycles of polynomial systems with homogeneous non-linearities
- Bifurcation formulae derived from center manifold theory
- Ljapunov approach to multiple Hopf bifurcation
- Global bifurcations in a disturbed Hamiltonian vector field approaching a 3:1 resonant Poincaré map. I
- Zeroes of complete elliptic integrals for 1:2 resonance
- Bifurcation set and limit cycles forming compound eyes in a perturbed Hamiltonian system
- Global bifurcations in a perturbed cubic system with \(Z_ 2\)-symmetry
- Singularities of vector fields on the plane
- Loss of stability of self-oscillations close to resonance and versal deformations of equivariant vector fields
- Computation of normal forms
- Cubic systems and Abel equations
- Petrov modules and zeros of abelian integrals
- Center problem for several differential equations via Cherkas' method
- Abelian integrals related to Morse polynomials and perturbations of plane Hamiltonian vector fields
- Link theory and oval arrangements of real algebraic curves
- Linear estimate of the number of zeros of Abelian integrals for a kind of quartic Hamiltonians
- Rokhlin's inequalities for real algebraic curves and an extremal property
- Cyclicity 1 and 2 conditions for a 2-polycycle of integrable systems on the plane
- Existence of limit cycles in a multiply-connected region
- Melnikov functions and perturbation of a planar Hamiltonian system
- On sufficient conditions for certain two-dimensional systems to have at most two limit cycles
- Abelian integrals in non-symmetric perturbation of symmetric Hamiltonian vector field
- Quadratic systems with center and their perturbations
- Hilbert's 16th problem for quadratic vector fields
- Separatrix cycles and mutiple limit cycles in a class of quadratic systems
- Degenerate and non-trivial hyperbolic polycycles with two vertices
- Weak focus, limit cycles, and bifurcations for bounded quadratic systems
- The first derivative of the period function of a plane vector field
- Quadratic Liénard equations with quadratic damping
- Unfolding of a quadratic integrable system with two centers and two unbounded heteroclinic loops
- Algebraic properties of the Lyapunov and period constants
- Perturbations of quadratic centers
- Integrability of a linear center perturbed by a fifth degree homogeneous polynomial
- Cyclicity of planar homoclinic loops and quadratic integrable systems
- On the shape of limit cycles that bifurcate from Hamiltonian centers
- On Hopf cyclicity of planar systems
- Abelian integrals for cubic vector fields
- Mathematical problems for the next century
- Linear estimation of the number of zeros of abelian integral for some cubic isochronous centers
- Saddle quantities and applications
- A system with three limit cycles appearing in a Hopf bifurcation and dying in a homoclinic bifurcation: The cusp of order 4
- Hilbert's sixteenth problem and global bifurcations of limit cycles.
- Linear estimate of the number of zeros of Abelian integrals for a class of integrable non-Hamiltonian systems.
- A note on a result of G. S. Petrov about the weakened 16th Hilbert problem
- Bifurcation of limit cycles from quadratic centers
- Multiple limit cycle bifurcation surfaces and global families of multiple limit cycles
- On cyclicity of triangles and segments in quadratic systems
- Simple exponential estimate for the number of real zeros of complete abelian integrals
- Cyclicity of a family of vector fields
- Double exponential estimate for the number of zeros of complete Abelian integrals and rational envelopes of linear ordinary differential equations with an irreducible monodromy group
- Perturbations of quadratic Hamiltonian systems with symmetry
- Abelian integrals of quadratic Hamiltonian vector fields with an invariant straight line
- The cyclicity of the period annulus of the quadratic Hamiltonian triangle
- Integrability of a linear center perturbed by a fourth degree homogeneous polynomial
- Phase portraits of planar semi-homogeneous vector fields. II
- On the limit cycles available from polynomial perturbations of the Bogdanov-Takens Hamiltonian
- The cyclicity of the period annulus of the quadratic Hamiltonian systems with non-Morsean point
- A survey of quadratic systems
- The cusp of order n
- On the topology of real plane algebraic curves
- The number of limit cycles of polynomial deformations of a Hamiltonian vector field
- On the conditions of Kukles for the existence of a Centre
- Comparaison de la Méthode des Constantes de Lyapunov et de la Bifurcation de Hopf*
- ON THE VERSALITY OF A FAMILY OF SYMMETRIC VECTOR FIELDS IN THE PLANE
- The number of small-amplitude limit cycles of Liénard equations
- REAL PLANE CURVES OF DEGREES 7 AND 8: NEW PROHIBITIONS
- Limit Cycles for a Class of Abel Equations
- Bounded Polynomial Vector Fields
- The number of limit cycles of certain polynomial differential equations
- Generic 3-parameter families of vector fields on the plane, unfolding a singularity with nilpotent linear part. The cusp case of codimension 3
- Progress in the topology of real algebraic varieties over the last six years
- On the number of limit cycles which appear by perturbation of separatrix loop of planar vector fields
- Quadratic systems with a degenerate critical point
- Condition for generating limit cycles by bifurcation of the loop of a saddle-point separatrix
- Generalized Hopf Bifurcation and Its Dual Generalized Homoclinic Bifurcation
- The Saddle-Node Separatrix-Loop Bifurcation
- Small-amplitude limit cycles of certain Liénard systems
- Limit cycles of a class of polynomial systems