The topological mirror partner conjecture for toric degenerations

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Let YY be a smooth complete algebraic variety that is the generic fiber of a flat family with special fiber Y0Y_0, where Y0Y_0 is a complete intersection in a complete toric variety determined by a calibrated nef-partitioned framing. Let Y0∨Y_0^\vee be the corresponding ff-mirror partner, and write kZk_Z and mZm_Z for the relevant topological invariants. Topological mirror partner conjecture. There exists a partitioned ftv (X,a=∑kak)(X,\mathbf{a}=\sum_k\mathbf{a}_k) and a suitable resolution Y^0∨⟶Y0∨\widehat{Y}_0^\vee\longrightarrow Y_0^\vee such that Y0∨Y_0^\vee is a topological mirror partner of YY, namely

kY^0∨=mYandkY=mY0∨.k_{\widehat{Y}_0^\vee}=m_Y\quad\text{and}\quad k_Y=m_{Y_0^\vee}.

The conjecture extends ff-mirror duality from toric complete intersections to varieties admitting toric degenerations. The source gives no resolution status or supporting theorem for these equalities.

References

Primary source

Michele Rossi, “An extension of polar duality of toric varieties and its consequences in Mirror Symmetry”, arXiv:2003.08700 (2022).

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