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Olivier Benoist

Paris

http://www.math.ens.fr/~benoist/

You can contact me at olivier(.)benoist(@)ens(.)fr .

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86
Is there a complex surface into which every Riemann surface embeds?
mathoverflow.net

25
Kodaira dimension of symmetric products of curves
mathoverflow.net

23
Class number measuring the failure of unique factorization
mathoverflow.net

22
Rational solutions of the Fermat equation $X^n+Y^n+Z^n=1$
mathoverflow.net

18
A line bundle that does not admit a G-linearisation
mathoverflow.net

17
Do varieties with ample canonical bundle have finite automorphism group in small characteristic?
mathoverflow.net

16
On condition when the push-forward of coherent sheaf is locally free
mathoverflow.net

16
Is an algebraic space over a DVR, whose special fibre and generic fibre are schemes, actually a scheme?
mathoverflow.net

15
Bialynicki-Birula decomposition of a non-singular quasi-projective scheme.
mathoverflow.net

15
Characteristic zero and characteristic $p$ in algebraic geometry
mathoverflow.net

14
Blow up along codimension one closed subscheme
mathoverflow.net

13
injectivity of the pull-back via a finite map
mathoverflow.net

12
Finite map from quasi-projective variety
mathoverflow.net

12
Is there a connected $k$-group scheme $G$ such that $G_{red}$ is not a subgroup?
mathoverflow.net

12
Counter-example to faithfully flat descent
mathoverflow.net

11
When is a submanifold of $\mathbf R^n$ given by global equations?
mathoverflow.net

10
Localizing at the primitive polynomials?
mathoverflow.net

10
Parameter space for complete intersections and their discriminant
mathoverflow.net

10
Complex structures on a K3 surface as a hyperkähler manifold
mathoverflow.net

10
If the direct image of f preserves coherent sheaves on noetherian schemes, how to show f is proper?
mathoverflow.net

9
Is reflexivity an open condition?
mathoverflow.net

9
flatness criterion on normal bases
mathoverflow.net

9
Spectrum and scheme of the commutative group-algebra of an abelian group.
mathoverflow.net

9
A question on infinitely many closed points on a smooth projective variety and their behavior under embeddings
mathoverflow.net

9
Closed points of field extension of k-scheme under projection
mathoverflow.net

8
Hn(X, OX) = 0 for X birational to a regular affine variety?
mathoverflow.net

8
Existence of points on varieties which avoid a given number field.
mathoverflow.net

8
Irreducible divisors containing an arbitrary closed set
mathoverflow.net

7
When does dimension behave nicely for quotients of affine algebraic varieties by the action of a group?
mathoverflow.net

7
Secant variety of an irreducible non-degenerate projective curve
mathoverflow.net

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