Gelfand's trick for the spherical derived Hecke algebra
arXiv:2008.02235 · doi:10.1093/imrn/rnab130
Abstract
Gelfand's trick shows that the spherical Hecke algebra of a -adic split reductive group is commutative. We adapt this strategy in order to show that the spherical derived Hecke algebra is graded-commutative under mild assumptions on the coefficient ring.
expanded exposition, minor changes, to appear in Int. Math. Res. Not. IMRN