2 papers
math.AG2020
A Serre Relation in the -theoretic Hall algebra of surfaces
Junyao Peng, Yu Zhao
We prove a Serre relation in the -theoretic Hall algebra of surfaces constructed by Kapranov-Vasserot and the second author.
math.AG2019
On the -theoretic Hall algebra of a surface
Yu Zhao
In this paper, we define the -theoretic Hall algebra for -dimensional coherent sheaves on a smooth projective surface, prove that the algebra is associative and construct a h…