Abstract
The Lüroth problem asks whether every unirational variety is rational. After a historical survey, we describe the methods developed in the 1970s to get a negative answer, and give some easy examples. Then we discuss a new method introduced last year by C. Voisin.
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Notes
- 1.
Fano proved in [F3] that the variety X 14 is birational to a smooth cubic threefold.
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Beauville, A. (2016). The Lüroth Problem. In: Pardini, R., Pirola, G. (eds) Rationality Problems in Algebraic Geometry. Lecture Notes in Mathematics(), vol 2172. Springer, Cham. https://doi.org/10.1007/978-3-319-46209-7_1
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