The absolute index conjecture for klt Calabi–Yau varieties

Let dd be a natural number, and let XX be a projective klt Calabi–Yau variety of dimension dd, meaning that

KXQ0.K_X\sim_\mathbb Q0.

The absolute index conjecture. There exists a positive integer nn, depending only on dd, such that

nKX0.nK_X\sim 0.

This is the zero-boundary special case of the index conjecture and is related in the source to minimal log discrepancies near 11 for Calabi–Yau varieties. The source does not provide a resolution status for this conjecture.

Sources & referencesView supporting material

Primary source

Yanning Xu, “Some Results about the Index Conjecture for log Calabi-Yau Pairs”, arXiv:1905.00297 (2019).

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