Fujita's Spectrum Conjecture for smooth polarized varieties

For each integer n1n\geq 1, let SnS_n be the set of unnormalized spectral values of a smooth polarized nn-fold. For a smooth polarized variety, these spectral values are the numerical invariants under consideration.

Fujita's Spectrum Conjecture. For every ε>0\varepsilon>0, the set

{μSnμ>ε}\{\mu\in S_n\mid \mu>\varepsilon\}

is a finite set of rational numbers.

This conjecture concerns the discreteness and rationality of spectral values of smooth polarized varieties. The supplied text does not state whether it has been resolved, so its status is recorded as open.

Sources & referencesView supporting material

Primary source

Sofía Garzón Mora and Christian Haase, “Fine Polyhedral Adjunction Theory”, arXiv:2302.04074 (2023).

Additional references

4 papers in this index state this conjecture (1997–2023). The statement above is taken from the most recent of them; the others are arXiv:1812.04260, arXiv:1301.4967, arXiv:alg-geom/9712002.

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