Kavli Affiliate: Mikhail Kapranov | Summary:For a smooth quasi-projective surface S over complex numbers we consider the Borel-Moore homology of the stack of coherent sheaves on S with compact support and make this space into an associative algebra by a version of the Hall multiplication. This multiplication involves data (virtual pullbacks) governing the derived moduli […]
Continue.. The cohomological Hall algebra of a surface and factorization cohomology