Refined unramified cohomology

Name: Refined unramified cohomology
Start: 2021-05-04T15:00:00-04:00
End: 2021-05-04T16:00:00-04:00
Location: Virtually

When: May 4, 2021

3:00 pm - 4:00 pm

Where: Virtually

Speaker: Stefan Schreieder - University of Hannover

We introduce refined unramified cohomology and prove some
general comparison theorems to cycle groups. Our approach has several applications. For instance, it allows to construct the first example of a smooth complex projective variety whose Griffiths group has infinite torsion subgroup.

Zoom: https://harvard.zoom.us/j/91794282895?pwd=VFZxRWdDQ0VNT0hsVTllR0JCQytoZz09