The twisted Fukaya-category conjecture for normal crossings surfaces
Let be a proper normal crossings surface with graph-like singular locus described by a trivalent graph and orientable dual intersection complex. For each edge whose component of the singular locus is isomorphic to , set
Let be a Riemann surface with a pants decomposition whose graph is , and let be the graded symplectic manifold obtained by the stated cut-and-reglue construction. Twisted Fukaya-category conjecture. There is an equivalence
The right-hand category carries an autoequivalence and a natural isomorphism , giving a -twisted -periodic structure. This conjecturally extends the mirror description to nonzero degrees along the singular components.
References
Primary source
James Pascaleff and Nicolò Sibilla, “Singularity categories of normal crossings surfaces, descent, and mirror symmetry”, arXiv:2208.03896 (2022).
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