4
$\begingroup$

Is there a polynomial vector field $X$ on $\mathbb{R}^2$ such that every complex limit cycle of the corresponding foliation of $\mathbb{C}^2$ must necessarily intersect the real plane $\mathbb{R}^2$.

Remark 1: We exclude the case that there is no any comlex limit cycle at all. So to avoid triviality we assume that we have at least one complex limit cycle. Namely we assume that there exist at least one non singular leaf with non trivial holonomy group.

Remark 2: The motivation for this question is introduced here:

https://maco.lu.ac.ir/article-1-86-en.html

$\endgroup$

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.