Time: 15:00 - 16:00, September 21, 2021

Link Online: meet.google.com/rzp-puem-ayw

Abstract: In this paper, our purpose is to give a characterization of the generic special cubic fourfold which contains a smooth rational surface of degree $9$ not homologous to a complete intersection. As corollaries, we will give an explicit construction of families of smooth surfaces in generic special cubic fourfolds $Xin mathcal{C}_delta$ for $6