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math.QA2013
On functors between module categories for associative algebras and for -graded vertex algebras
Yi-Zhi Huang, Jinwei Yang
We prove that the weak associativity for modules for vertex algebras are equivalent to a residue formula for iterates of vertex operators, obtained using the weak associativity and…
math.QA2013★ 2 cited
Differential equations and logarithmic intertwining operators for strongly graded vertex algebras
Jinwei Yang
We derive certain systems of differential equations for matrix elements of products and iterates of logarithmic intertwining operators among strongly graded generalized modules for…