The ring of Weyl invariant $E_8$ Jacobi forms https://arxiv.org/abs/2410.12907 #mathNT #mathAG #hepth
We prove that the ring of Weyl invariant $E_8$ weak Jacobi forms is isomorphic to that of joint covariants of a binary sextic and a binary quartic form. The ring is therefore finitely generated. A minimal basis of generators is obtained from that already known for the ring of covariants.
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