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Jan 2, 2023 at 19:06 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
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Apr 7, 2022 at 17:28 answer added Ali Taghavi timeline score: 1
May 2, 2019 at 10:34 comment added Ali Taghavi @LoïcTeyssier No but your comment was interesting. May be it is an indirect motivation to consider the following example: $\begin{cases}x'=y-x^2\\y'=-x \end{cases} $ Now what about the curve $e^{-2y}(y-x^2+1/2)=i$? What can be said about its holonomy?Is it nontrivial? I appreciate your comments to this question.
Apr 28, 2019 at 19:14 comment added Loïc Teyssier I'm not convinced that the algebraic nature of the leaf is relevant here. But I already was wrong on this question ;)
Apr 26, 2019 at 8:40 comment added Ali Taghavi @LoïcTeyssier Now I think that the example i provided in the linked question is somewhat a fake example, in the sense that the leaf is an algebraic leaf. now I am thinking to find an algebraic vector field with a non algebraic complex limit cycle not intersecting the real plane(both real or complex coefficents). As we know a generic algebraic vector field does not have an algebraic leaf.So in this new formulation is the question still an obvious question?
Apr 26, 2019 at 7:25 comment added Ali Taghavi @LoïcTeyssier Yes. Many thanks for this comment.
Apr 25, 2019 at 14:10 comment added Loïc Teyssier This case is the same as your example in the complex version of the question. Just consider $$z′=w+(z^2+w^2+4) \\ w′=−z+(z^2+w^2+4)$$.
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Apr 14, 2019 at 11:34 history edited Ali Taghavi CC BY-SA 4.0
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S Apr 14, 2019 at 11:27 history bounty started Ali Taghavi
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Apr 10, 2019 at 22:06 history edited Ali Taghavi CC BY-SA 4.0
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Apr 10, 2019 at 21:53 history asked Ali Taghavi CC BY-SA 4.0