Research Group:
Speaker:
Dmitrii Rachenkov
Schedule:
Friday, April 29, 2022 - 16:30 to 17:30
Location:
A-136
Abstract:
For morphism of surfaces, that is in our context a resolution of normal singularity, there is a pushforward in the categories of coherent sheaves. The right derived functors of the pushforward, that are also called higher direct images, take part in the definition of rational singularities: the first derived functor should be equal to zero.In the talk I am going to discuss some properties of higher direct images for the surface case and calculate one example.