Homogeneous-Like Generalized Cubic Systems
We consider properties and center conditions for plane polynomial systems of the forms x˙=-y-p1(x,y)-p2(x,y), y˙=x+q1(x,y)+q2(x,y) where p1, q1 and p2, q2 are polynomials of degrees n and 2n-1, respectively, for integers n≥2. We restrict our attention to those systems for which yp2(x,y)+xq2(x,y)=0....
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Differential Equations |
| Online Access: | http://dx.doi.org/10.1155/2016/7640340 |
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| _version_ | 1832566849468891136 |
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| author | G. R. Nicklason |
| author_facet | G. R. Nicklason |
| author_sort | G. R. Nicklason |
| collection | DOAJ |
| description | We consider properties and center conditions for plane polynomial systems of the forms x˙=-y-p1(x,y)-p2(x,y), y˙=x+q1(x,y)+q2(x,y) where p1, q1 and p2, q2 are polynomials of degrees n and 2n-1, respectively, for integers n≥2. We restrict our attention to those systems for which yp2(x,y)+xq2(x,y)=0. In this case the system can be transformed to a trigonometric Abel equation which is similar in form to the one obtained for homogeneous systems (p2=q2=0). From this we show that any center condition of a homogeneous system for a given n can be transformed to a center condition of the corresponding generalized cubic system and we use a similar idea to obtain center conditions for several other related systems. As in the case of the homogeneous system, these systems can also be transformed to Abel equations having rational coefficients and we briefly discuss an application of this to a particular Abel equation. |
| format | Article |
| id | doaj-art-ac666cc455ff4a5e9d845cdd0e3264bc |
| institution | Kabale University |
| issn | 1687-9643 1687-9651 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Differential Equations |
| spelling | doaj-art-ac666cc455ff4a5e9d845cdd0e3264bc2025-02-03T01:03:10ZengWileyInternational Journal of Differential Equations1687-96431687-96512016-01-01201610.1155/2016/76403407640340Homogeneous-Like Generalized Cubic SystemsG. R. Nicklason0Mathematics, Physics and Geology, Cape Breton University, P.O. Box 5300, 1250 Grand Lake Road, Sydney, NS, B1P 6L2, CanadaWe consider properties and center conditions for plane polynomial systems of the forms x˙=-y-p1(x,y)-p2(x,y), y˙=x+q1(x,y)+q2(x,y) where p1, q1 and p2, q2 are polynomials of degrees n and 2n-1, respectively, for integers n≥2. We restrict our attention to those systems for which yp2(x,y)+xq2(x,y)=0. In this case the system can be transformed to a trigonometric Abel equation which is similar in form to the one obtained for homogeneous systems (p2=q2=0). From this we show that any center condition of a homogeneous system for a given n can be transformed to a center condition of the corresponding generalized cubic system and we use a similar idea to obtain center conditions for several other related systems. As in the case of the homogeneous system, these systems can also be transformed to Abel equations having rational coefficients and we briefly discuss an application of this to a particular Abel equation.http://dx.doi.org/10.1155/2016/7640340 |
| spellingShingle | G. R. Nicklason Homogeneous-Like Generalized Cubic Systems International Journal of Differential Equations |
| title | Homogeneous-Like Generalized Cubic Systems |
| title_full | Homogeneous-Like Generalized Cubic Systems |
| title_fullStr | Homogeneous-Like Generalized Cubic Systems |
| title_full_unstemmed | Homogeneous-Like Generalized Cubic Systems |
| title_short | Homogeneous-Like Generalized Cubic Systems |
| title_sort | homogeneous like generalized cubic systems |
| url | http://dx.doi.org/10.1155/2016/7640340 |
| work_keys_str_mv | AT grnicklason homogeneouslikegeneralizedcubicsystems |