Integral cocenter isomorphism conjecture for the Gieseker variety

From papers

Let R\mathcal{R} be the coefficient ring, let Ploc=PRFracRP_{\mathrm{loc}}=P\otimes_{\mathcal{R}}\operatorname{Frac}\mathcal{R} for every R\mathcal{R}-module PP, and let

KT(L(n,r))locTr(Hn,r)locK_{\mathcal{T}}(\mathcal{L}(n,r))_{\mathrm{loc}}\simeq \operatorname{Tr}({\bf H}_{n,r})_{\mathrm{loc}}

be the unique isomorphism of Z(Hn,r)locZ({\bf H}_{n,r})_{\mathrm{loc}}-modules intertwining the specified pairings and maps. Integral cocenter isomorphism conjecture. This isomorphism induces the isomorphism

KT(L(n,r))Tr(\Heckn,r)K_{\mathcal{T}}(\mathcal{L}(n,r))\simeq \operatorname{Tr}(\Heck_{n,r})

of Z(\Heckn,r)Z(\Heck_{n,r})-modules. The conjecture asserts that the localized identification descends to the unlocalized equivariant KK-theory and cocenter; its resolution is not specified in the supplied text.

Progress summary

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Sources & referencesView supporting material

Primary source

Vasily Krylov, Raphaël Paegelow and Pavel Shlykov, “K-theory of Gieseker variety and type A cyclotomic Hecke algebra”, arXiv:2605.11579 (2026).

Solutions 0

No solutions have been posted yet.