We generalize Weil’s converse theorem to Jacobi cusp forms of weight k, index m and Dirichlet character χ over the group Γ0(N)⋉ℤ2. Then two applications of this result are given; we generalize a construction of Jacobi forms due to Skogman and present a new proof for several known lifts of such Jacobi forms to half-integral weight modular forms.
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Shandong Univ, Sch Math & Stat, Weihai 264209, Shandong, Peoples R ChinaShandong Univ, Sch Math & Stat, Weihai 264209, Shandong, Peoples R China
Jiang, Y. -J.
Lau, Y. -K.
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Univ Hong Kong, Dept Math, Pokfulam Rd, Hong Kong, Peoples R ChinaShandong Univ, Sch Math & Stat, Weihai 264209, Shandong, Peoples R China
Lau, Y. -K.
Lue, G. -S.
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Shandong Univ, Dept Math, Jinan 250100, Shandong, Peoples R ChinaShandong Univ, Sch Math & Stat, Weihai 264209, Shandong, Peoples R China
Lue, G. -S.
Royer, E.
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Univ Clermont Auvergne, CNRS, LMBP, F-63000 Clermont Ferrand, FranceShandong Univ, Sch Math & Stat, Weihai 264209, Shandong, Peoples R China
Royer, E.
Wu, J.
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Univ Paris Est Creteil, CNRS, LAMA 8050, Lab Anal & Math Appl, F-94010 Creteil, FranceShandong Univ, Sch Math & Stat, Weihai 264209, Shandong, Peoples R China