##### BIO

**Claire Voisin** (Saint-Leu-la-Forêt, Valle del Oise, France, 1962) received her PhD in 1986 from Université Paris-Sud, where she studied under Arnaud Beauville. That same year, she joined France’s National Centre for Scientific Research (CNRS). She is currently a research professor at the Mathematics Institute of Jussieu–Paris Rive Gauche, a research facility whose parent organizations are the CNRS, Sorbonne University and the University of Paris. Voisin was previously a member of the Centre de Mathématiques Laurent-Schwartz of the École Polytechnique, and was the first female mathematician to enter the Collège de France, where she held the Chair of Algebraic Geometry from 2016 to 2020. An invited speaker at leading research centers and specialist conferences worldwide, she holds or has held editorial positions in publications such as *Mathematische Zeitschrift, Journal of Algebraic Geometry, Duke Mathematical Journal *or *Moduli*.

##### CONTRIBUTION

Looking back, Voisin is clear that her feeling for mathematics was not “love at first sight” but a passion forged slowly over the course of many years. Shortly after she began her prolific research career, she realized that the phenomenon known as mirror symmetry, already described by other authors, could be a way to build bridges between algebraic and symplectic geometry. She set out her conclusions in the book *Mirror Symmetry*, published in 1996, helping bring about dynamics of exchange between these two areas.

Of her later work, the mathematician says she has taken most pleasure from the articles in which she has obtained an important result, but one that could be stated simply and proven with a method that was elegant, thanks to finding a new way of thinking about the problem. For instance, in a 2004 paper, published in *Inventiones Mathematicae*, she concluded that there were objects within algebraic geometry, known as Kähler manifolds, that could not be obtained by deforming other, apparently related manifolds. To prove this impossibility, she used tools from topology, a branch more closely related to symplectic than to algebraic geometry.