AbstractThe paper studies quadratic Hamiltonian centers surrounded by a separatrix contour having a form of a triangle. It is proved that in this situation the cyclicity of the period annulus under quadratic perturbations is equal to three
AMS (MOS). Mathematics Subject Classification. 58F21, 34C05, 58F27, 58F30.We study the cyclicity of ...
We study the number of limit cycles bifurcating from the origin of a Hamiltonian system of degree 4....
Agraïments: The first and third authors are partially supported by the grant TIN2008-04752/TI
AbstractThe paper studies quadratic Hamiltonian centers surrounded by a separatrix contour having a ...
AbstractIn this paper, we investigate the quadratic Hamiltonian systems with non- Morsean point. It ...
AbstractWe study the bifurcation of limit cycles in general quadratic perturbations of plane quadrat...
In this work we are concerned with the problem of shape and period of isolated periodic solutions of...
AbstractWe study the stratum in the set of all quadratic differential systems x˙=P2(x,y), y˙=Q2(x,y)...
Agraïments: The third author is partially supported by FCT/Portugal through UID/MAT/04459/2013.We st...
AbstractWe investigate the bifurcation of limit cycles in a class of planar quadratic reversible (no...
AbstractA combination of analytical and numerical work is done to analyze bifurcation of limit cycle...
In this paper, we study the number of limit cycles that can bifurcating from a periodic annulus in d...
We prove that perturbing the periodic annulus of the reversible quadratic polynomial differential sy...
In this paper, we study the number of limit cycles that can bifurcate from a periodic annulus in dis...
Consider the class of all quadratic centers whose period annulus has a periodic solution whose phase...
AMS (MOS). Mathematics Subject Classification. 58F21, 34C05, 58F27, 58F30.We study the cyclicity of ...
We study the number of limit cycles bifurcating from the origin of a Hamiltonian system of degree 4....
Agraïments: The first and third authors are partially supported by the grant TIN2008-04752/TI
AbstractThe paper studies quadratic Hamiltonian centers surrounded by a separatrix contour having a ...
AbstractIn this paper, we investigate the quadratic Hamiltonian systems with non- Morsean point. It ...
AbstractWe study the bifurcation of limit cycles in general quadratic perturbations of plane quadrat...
In this work we are concerned with the problem of shape and period of isolated periodic solutions of...
AbstractWe study the stratum in the set of all quadratic differential systems x˙=P2(x,y), y˙=Q2(x,y)...
Agraïments: The third author is partially supported by FCT/Portugal through UID/MAT/04459/2013.We st...
AbstractWe investigate the bifurcation of limit cycles in a class of planar quadratic reversible (no...
AbstractA combination of analytical and numerical work is done to analyze bifurcation of limit cycle...
In this paper, we study the number of limit cycles that can bifurcating from a periodic annulus in d...
We prove that perturbing the periodic annulus of the reversible quadratic polynomial differential sy...
In this paper, we study the number of limit cycles that can bifurcate from a periodic annulus in dis...
Consider the class of all quadratic centers whose period annulus has a periodic solution whose phase...
AMS (MOS). Mathematics Subject Classification. 58F21, 34C05, 58F27, 58F30.We study the cyclicity of ...
We study the number of limit cycles bifurcating from the origin of a Hamiltonian system of degree 4....
Agraïments: The first and third authors are partially supported by the grant TIN2008-04752/TI
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