2 papers
math.AG2024
Filtrations on the derived category of twisted K3 surfaces
Zaiyuan Chen, Zhiyuan Li, Ruxuan Zhang +1
We introduce and study the Shen-Yin-Zhao filtration on derived categories of twisted K3 surfaces. A main contribution is the construction of a twisted Beauville-Voisin class $\math…
math.AG2022
Deligne-Beilinson cohomology of the universal K3 surface
Zhiyuan Li, Xun Zhang
O'Grady's generalized Franchetta conjecture (GFC) is concerned with codimension 2 algebraic cycles on universal polarized K3 surfaces. In \cite{BL17}, this conjecture has been stud…