Article ID Journal Published Year Pages File Type
4665340 Advances in Mathematics 2015 31 Pages PDF
Abstract

Mathieu moonshine attaches a weak Jacobi form of weight zero and index one to each conjugacy class of the largest sporadic simple group of Mathieu. We introduce a modification of this assignment, whereby weak Jacobi forms are replaced by semi-holomorphic Maass–Jacobi forms of weight one and index two. We prove the convergence of some Maass–Jacobi Poincaré series of weight one, and then use these to characterize the semi-holomorphic Maass–Jacobi forms arising from the largest Mathieu group.

Related Topics
Physical Sciences and Engineering Mathematics Mathematics (General)
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