The toric degeneration conjecture for large complex structure limits

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Let f:X→Df:\mathcal{X}\rightarrow D be a large complex structure limit degeneration. A toric degeneration is a degeneration whose central fibre and associated structure have the toric form used in the paper.

Toric degeneration conjecture. The degeneration ff is birationally equivalent to a toric degeneration

f′:X′→D.f':\mathcal{X}'\rightarrow D.

This conjecture asks whether toric degenerations capture all large complex structure limit degenerations up to birational equivalence, which would substantially broaden the reach of the toric mirror-symmetry construction. The source does not establish the claim, so its status remains open.

References

Primary source

Mark Gross, “The Strominger-Yau-Zaslow conjecture: From torus fibrations to degenerations”, arXiv:0802.3407 (2008).

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