Largest anticanonical volume conjecture for Gorenstein terminal Fano varieties

For each odd integer n5n\geq5, let sis_i be the sequence used in the paper, and let XX be the nn-fold in the theorem constructing the Gorenstein terminal weighted projective space. Largest-volume conjecture for Gorenstein terminal Fano varieties. The anticanonical volume

(KX)n=2n+12(sn121)4(-K_X)^n=2^{\frac{n+1}{2}}(s_{\frac{n-1}{2}}-1)^4

of XX is the largest possible volume among all Gorenstein terminal Fano nn-folds. The constructed examples have the largest volume among the corresponding Gorenstein terminal weighted projective spaces in the listed odd dimensions, but optimality for all Gorenstein terminal Fano varieties remains open.

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Primary source

Chengxi Wang, “Fano varieties with conjecturally largest Fano index”, arXiv:2308.06563 (2023).

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