Covering and stabilisation conjecture for Fukaya categories

Let MM be a Liouville manifold, let M~M\widetilde M\to M be a cover, and let W:M×D2D2W:M\times D^2\to D^2 be given by W(m,z)=z2W(m,z)=z^2. Let F\mathcal F denote the relevant Fukaya categories, with vertical functors induced by inverse images of Lagrangians. Covering and stabilisation conjecture. For each cover M~\widetilde M of MM, there should be a commutative diagram

F(M~)F(M~×D2,W)F(M)F(M×D2,W)\begin{array}{ccc} \mathcal F(\widetilde M)&\longrightarrow&\mathcal F(\widetilde M\times D^2,W)\\ \uparrow&&\uparrow\\ \mathcal F(M)&\longrightarrow&\mathcal F(M\times D^2,W) \end{array}

where the horizontal arrows are equivalences and the vertical arrows are pullback functors assigning to a Lagrangian its inverse image. Fukaya categories of these stabilisations are not fully developed in the source's discussion; the conjecture is used to formulate consequences for geometric automorphisms after stabilisation.

Sources & referencesView supporting material

Primary source

Mohammed Abouzaid and Ivan Smith, “Exact Lagrangians in plumbings”, arXiv:1107.0129 (2012).

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