51 citations · 182 across the 12 of their papers we have counts for
3 papers · 2 filters
Some remarks on phantom categories and motives
Pawel Sosna
A phantom category is an admissible subcategory with vanishing Grothendieck group of the bounded derived category of coherent sheaves on a smooth projective variety. The goal of th…
Some properties of dynamical degrees with a view towards cubic fourfolds
Christian Böhning, Hans-Christian Graf von Bothmer, Pawel Sosna
Dynamical degrees and spectra can serve to distinguish birational automorphism groups of varieties in quantitative, as opposed to only qualitative, ways. We introduce and discuss s…
On the dynamical degrees of reflections on cubic fourfolds
Christian Böhning, Hans-Christian Graf von Bothmer, Pawel Sosna
We compute the dynamical degrees of certain compositions of reflections in points on a smooth cubic fourfold. Our interest in these computations stems from the irrationality proble…