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math.RT2022
Cone Vertex Algebras, Mock Theta Functions, and Umbral Moonshine Modules
Miranda C. N. Cheng, Gabriele Sgroi
We describe a family of indefinite theta functions of signature that can be expressed in terms of trace functions of vertex algebras built from cones in lattices. The famil…
math.RT2017★ 1 cited
Meromorphic Jacobi Forms of Half-Integral Index and Umbral Moonshine Modules
Miranda C. N. Cheng, John F. R. Duncan
In this work we consider an association of meromorphic Jacobi forms of half-integral index to the pure D-type cases of umbral moonshine, and solve the module problem for four of th…