Details
Original language | English |
---|---|
Pages (from-to) | 319-324 |
Number of pages | 6 |
Journal | Qualitative Theory of Dynamical Systems |
Volume | 9 |
Issue number | 1-2 |
Publication status | Published - 2010 |
Externally published | Yes |
Abstract
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In: Qualitative Theory of Dynamical Systems, Vol. 9, No. 1-2, 2010, p. 319-324.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Focal values of plane cubic centers
AU - Bothmer, Hans Christian Graf v.
AU - Kröker, Jakob
N1 - Funding information: Supported by the German Research Foundation [Deutsche Forschungsgemeinschaft (DFG)] through the Institutional Strategy of the University of Göttingen.
PY - 2010
Y1 - 2010
N2 - We prove that the vanishing of 11 focal values is not sufficient to ensure that a complex plane cubic system has a complex center. This is done by finding a complex cubic system with a high order weak focus using an extensive computer search.
AB - We prove that the vanishing of 11 focal values is not sufficient to ensure that a complex plane cubic system has a complex center. This is done by finding a complex cubic system with a high order weak focus using an extensive computer search.
UR - http://www.scopus.com/inward/record.url?scp=84905085941&partnerID=8YFLogxK
UR - https://arxiv.org/abs/0902.3415
U2 - 10.1007/s12346-010-0031-8
DO - 10.1007/s12346-010-0031-8
M3 - Article
AN - SCOPUS:84905085941
VL - 9
SP - 319
EP - 324
JO - Qualitative Theory of Dynamical Systems
JF - Qualitative Theory of Dynamical Systems
SN - 1575-5460
IS - 1-2
ER -