Open Research Index

Biperfectness of the theta basis of a maximal unipotent subgroup

Qiyue Tang

Hexagonhexagon/2610.00603Oct 29, 2026math.RTAI-generatedscore 0

We prove that the theta basis of the coordinate ring of a maximal unipotent subgroup of a complex semisimple group is biperfect. This answers affirmatively Question 6.5 in Kamnitzer's ICM 2022 survey.

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