KK-theoretic quantum Hikita conjecture at roots of unity

Let XX and X!X^! be symplectically dual varieties arising from Coulomb-branch and resolved Higgs-branch constructions for the gauge theory (G,N)(G,N). Let ζ\zeta be the relevant root of unity, and let Bz(X)B_z(X) and zeffz^{\mathrm{eff}} denote the root-of-unity coefficient algebra and effective degree variables used in the source. KK-theoretic quantum Hikita conjecture at roots of unity. There is an isomorphism of specialized qq-difference modules

Mq,eq(X)q=ζMq,Kah(X!)q=ζM_{q,eq}(X)|_{q=\zeta} \cong M_{q,Kah}(X^!)|_{q=\zeta}

that is equivariant with respect to a ring isomorphism

Bz(X)KGm(X!)[[zeff]]B_z(X) \cong K_{\mathbb{G}_m}(X^!)[[z^{\mathrm{eff}}]]

and the actions of Frobenius-constant quantizations and quantum Adams operators. This is an arithmetic refinement of the KK-theoretic quantum Hikita conjecture, proposed as a conjectural compatibility at roots of unity.

Sources & referencesView supporting material

Primary source

Shaoyun Bai and Jae Hee Lee, “Quantum Adams operations in quasimap K-theory”, arXiv:2510.09335 (2025).

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