Higher-rank Landau–Ginzburg gluing conjecture for simple normal-crossings pairs

Let XX be a quasi-Fano variety with a simple normal crossings anticanonical divisor DD, and suppose that XX admits a semi-stable degeneration into X1D0X2X_1\cup_{D_0}X_2. The mirror of (X,D)(X,D) is a rank nn Landau–Ginzburg model, while the mirrors of the two components with their corresponding simple normal crossing divisors are rank (n+1)(n+1) Landau–Ginzburg models. Higher-rank gluing conjecture for simple normal-crossings pairs. The rank nn Landau–Ginzburg mirror of (X,D)(X,D) can be obtained by topologically gluing the two rank (n+1)(n+1) Landau–Ginzburg models mirror to X1X_1 and X2X_2 with their corresponding simple normal crossing divisors. This generalizes the rank 11/22 gluing proposal to anticanonical divisors with more than two components; no proof or resolution is given.

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Primary source

Charles F. Doran, Jordan Kostiuk and Fenglong You, “Degenerations, fibrations and higher rank Landau-Ginzburg models”, arXiv:2112.12891 (2026).

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