Main K-theoretic convolution equivalence conjecture

Let GG be the group under consideration, GG^\vee its Langlands dual group, KConvG~(Gr)KConv^{\widetilde{G^\vee}}(Gr) and KConvG~×C×(Gr)KConv^{\widetilde{G^\vee}\times\mathbb C^\times}(Gr) the equivariant K-theory convolution categories, and let EE, EE^\vee, qq, Omin(G/G)-mod\mathcal O^{\min}(G/G)\operatorname{-mod}, and Oqmin(G/G)-mod\mathcal O_q^{\min}(G/G)\operatorname{-mod} have the meanings fixed in the paper. The categories are enriched over the indicated module categories, and objects of length mm carry actions of Zm\mathbb Z^m. Main K-theoretic convolution equivalence conjecture. There are equivalences

Omin(G/G)-modEEKConvG~(Gr)\mathcal O^{\min}(G/G)\operatorname{-mod}\otimes_E E^\vee\cong KConv^{\widetilde{G^\vee}}(Gr) Oqmin(G/G)-modEEKConvG~×C×(Gr)C[q±]C(q),\mathcal O_q^{\min}(G/G)\operatorname{-mod}\otimes_E E^\vee\cong KConv^{\widetilde{G^\vee}\times\mathbb C^\times}(Gr)\otimes_{\mathbb C[q^{\pm}]}\mathbb C(q),

of E-modE^\vee\operatorname{-mod}- and E(q)-modE^\vee(q)\operatorname{-mod}-enriched categories, respectively. The equivalences should also be compatible with the actions of Zm\mathbb Z^m on objects of length mm. This is the paper's main conjectural identification between K-theoretic convolution and quantum-equivariant module categories; it remains unproved.

Sources & referencesView supporting material

Primary source

Sabin Cautis and Joel Kamnitzer, “Quantum K-theoretic geometric Satake”, arXiv:1509.00112 (2017).

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