Newforms of half-integral weight: the minus space of S_{k+1/2}(Γ_0(8M))

Ehud Moshe Baruch, Soma Purkait

We compute generators and relations for a certain $2$-adic Hecke algebra of level $8$ associated with the double cover of ${\mathrm{SL}}_2$ and a $2$-adic Hecke algebra of level $4$…