Center problem with characteristic directions and inverse integrating factors
نویسندگان
چکیده
We consider the center-focus problem for analytic families of planar vector fields having a monodromic singularity with characteristic directions. give method to compute center conditions family provided there is an inverse integrating factor whose expression in polar coordinates has exceptional divisor first blow-up as isolated zero-set. Some non-trivial examples are analyzed.
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ژورنال
عنوان ژورنال: Communications in Nonlinear Science and Numerical Simulation
سال: 2022
ISSN: ['1878-7274', '1007-5704']
DOI: https://doi.org/10.1016/j.cnsns.2022.106276