81 citations · 242 across the 17 of their papers we have counts for
Showing 2011 · math.AGShow all
3 papers · 2 filters
math.AG2011★ 10 cited
Birational self-maps and piecewise algebraic geometry
Stéphane Lamy, Julien Sebag
Let X be a smooth projective complex variety, of dimension 3, whose Hodge numbers h^{3,0}(X), h^{1,0}(X) both vanish. Let f: X--> X be a birational map that induces an isomorphism…
math.AG2011★ 28 cited
Weak Fano threefolds obtained by blowing-up a space curve and construction of Sarkisov links
Jérémy Blanc, Stéphane Lamy
We characterise smooth curves in P^3 whose blow-up produces a threefold with anticanonical divisor big and nef. These are curves C of degree d and genus g lying on a smooth quartic…
math.AG2011★ 7 cited
The tame and the wild automorphisms of an affine quadric threefold
Stéphane Lamy, Stéphane Vénéreau
We prove the existence of wild automorphisms on an affine quadric threefold. The method we use is an adaptation of the one used by Shestakov and Umirbaev to prove the existence of…