We give in this article necessary and sufficient conditions on the topology of a compact domain with smooth boundary in Cn\documentclass[12pt]{minimal}
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\begin{document}$${\mathbb {C}}^n$$\end{document}, n≥3\documentclass[12pt]{minimal}
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\begin{document}$$n\ge 3$$\end{document}, to be isotopic to a rationally or polynomially convex domain.