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Smoothness/properness of the Fukaya category and comparison with quantum cohomology

Establish that the Fukaya category F(X) is smooth and proper for general compact symplectic manifolds X in the A-model monotone setting, and prove that the Hochschild cohomology HH^*(F(X)) agrees with the quantum cohomology QH^*(X).

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Background

The categorical form of ‘quantization commutes with reduction’ would have broad consequences if F(X) possessed standard finiteness properties and if its Hochschild cohomology coincided with the quantum cohomology of X.

The authors note that these properties are not currently known in general, limiting immediate Gromov–Witten consequences derivable from the conjectured categorical equivalence.

References

The category F(X) is not known to be smooth and proper in general, nor is its Hochschild cohomology known to agree with the quantum cohomology QH (X); so not many Gromov-Witten consequences could be immediately extracted from Conjecture 1.

Quantization commutes with reduction again: the quantum GIT conjecture I (2405.20301 - Pomerleano et al., 30 May 2024) in Section 1.3 (Dimension 2 and TQFT), item (ii) following Conjecture 1