Commutativity conjectures for parabolic affine category O over a deformation ring

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Let RR be the deformation ring, let R‾\overline R be the corresponding deformation ring after replacing ee by e+1e+1, and let Oμ,Rν,ΔO^{\nu,\Delta}_{\mu,R} and Oμ‾,R‾ν,ΔO^{\nu,\Delta}_{\overline\mu,\overline R} be the associated deformed parabolic categories. Let θμμ‾\theta^{\overline\mu}_\mu and θμ‾′μ′\theta^{\mu'}_{\overline\mu'} denote the equivalences between the corresponding categories, and let Fk,EkF_k,E_k and F‾k,E‾k\overline F_k,\overline E_k be the relevant functors. The deformation-ring commutativity conjectures. The two displayed diagrams in the source are commutative: the first compares FkF_k with the composite F‾k+1F‾k\overline F_{k+1}\overline F_k, and the second compares EkE_k with the corresponding composite E‾kE‾k+1\overline E_k\overline E_{k+1}, under the stated equivalences. These conjectures assert that the level-changing equivalences are compatible with both induction-type and restriction-type functors in the deformed parabolic categories; the source gives no evidence that they have been resolved.

References

Primary source

Ruslan Maksimau, “Affine category O, Koszul duality and Zuckerman functors”, arXiv:2007.11267 (2020).

Additional references

2 papers in this index state this conjecture (2015–2020). The statement above is taken from the most recent of them; the others are arXiv:1512.04878.

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