2 papers
math.AG2025
Multiplicative vertex algebras and quantum loop algebras
Henry Liu
We define a multiplicative version of vertex coalgebras and show that various equivariant K-theoretic constructions of Hall algebras (KHAs) also admit a compatible multiplicative v…
math.AG2025
Equivariant K-theoretic enumerative invariants and wall-crossing formulae in abelian categories
Henry Liu
We provide a general framework for wall-crossing of equivariant K-theoretic enumerative invariants of appropriate moduli stacks , by lifting Joyce's homological unive…