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Abstract This paper studies the universal first-order Massey product of a prefactorization algebra, which encodes higher algebraic operations on the cohomology. Explicit computations of these structures are carried out in the locally constant case, with applications to factorization envelopes on Rᵐ R m and a compactification of linear Chern–Simons theory on R² S¹ R 2 × S 1.
Bruinsma et al. (Tue,) studied this question.