Mathematics – Classical Analysis and ODEs
Scientific paper
2011-04-04
Mathematics
Classical Analysis and ODEs
10 pages
Scientific paper
10.1016/j.jmaa.2011.02.084
The study of periodic solutions with constant sign in the Abel equation of the second kind can be made through the equation of the first kind. This is because the situation is equivalent under the transformation $x\mapsto x^{-1}$, and there are many results available in the literature for the first kind equation. However, the equivalence breaks down when one seeks for solutions with nonconstant sign. This note is devoted to periodic solutions with nonconstant sign in Abel equations of the second kind. Specifically, we obtain sufficient conditions to ensure the existence of a periodic solution that shares the zeros of the leading coefficient of the Abel equation. Uniqueness and stability features of such solutions are also studied.
Olm Josep M.
Ros-Oton Xavier
Seara Tere M.
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