Valentin Poénaru
![Valentin Poénaru at [[Institut des Hautes Études Scientifiques|IHÉS]] in 2007](https://upload.wikimedia.org/wikipedia/commons/9/90/Valentin_Poenaru.jpg)
Valentin Alexandre Poénaru (born 1932 in Bucharest) is a Romanian–French mathematician. He was a Professor of Mathematics at University of Paris-Sud, specializing in low-dimensional topology.
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