Junwu Tu

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20242026

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math.SG2026

Categorical enumerative invariants of the ground field

Junwu Tu

For an $S^{1}$ -framed modular operad $P$ , we introduce its "Feynman compactification" denoted by $F P$ which is a modular operad. Let ${M^{fr} (g, n)}_{(g, n)}$ be the $S^…

math.SG2025

Categorical Enumerative Invariants, II: Givental formula

Andrei Caldararu, Junwu Tu

To a pair $(A, s)$ consisting of a smooth, cyclic $A_{\infty}$ -algebra $A$ and a splitting $s$ of the Hodge filtration on its Hochschild homology Costello (2005) associates an invaria…