Compact Chern character and weighted orbital integral conjecture

Let GG be a pp-adic group, let Sm{\rm Sm} be the category of smooth modules and AdmSm{\rm Adm}\subset {\rm Sm} the subcategory of admissible modules. Let HH0c(Sm)HH_0^c({\rm Sm}) and HH0(Sm)HH_0(\overline{\rm Sm}) denote compactly supported and compactified Hochschild homology, let KGc\mathcal K_G^c be the subspace of weightless measures supported on compact elements, and let chˉ\bar{ch} be the Chern character map. Compact Chern character and weighted orbital integral conjecture. There is a canonical isomorphism

KGcIm(HH0c(Sm)HH0(Sm)),\mathcal K_G^c\cong {\rm Im}\bigl(HH_0^c({\rm Sm})\to HH_0(\overline{\rm Sm})\bigr),

and, for ρAdm\rho\in{\rm Adm} and compact regular semisimple gGg\in G,

WOg(chˉ(ρ))=χρ(g).WO_g(\bar{ch}(\rho))=\chi_\rho(g).

This connects compactly supported Hochschild homology and Chern characters with character values; the supplied text does not state whether these assertions are known beyond the cases discussed in the paper.

Sources & referencesView supporting material

Primary source

Roman Bezrukavnikov and David Kazhdan, “Character values and Hochschild homology”, arXiv:1803.09442 (2018).

Progress summary

Never refreshed

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

Solutions 0

No solutions have been posted yet.