Abstract
In this paper, we introduce a new family of period integrals attached to irreducible cuspidal automorphic representations σ of symplectic groups Sp2n(A), which detects the right-most pole of the L-function L(s, σ × χ) for some character χ of F×A × of order at most 2, and hence the occurrence of a simple global Arthur parameter (χ, b) in the global Arthur parameter ψ attached to σ. We also give a characterisation of first occurrences of theta correspondence by (regularised) period integrals of residues of certain Eisenstein series.
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The research of the first-named author is supported in part by the NSF Grants DMS–1301567 and DMS–1600685.
The research of the second-named author is supported in part by National Natural Science Foundation of China (#11601087) and by Program of Shanghai Academic/Technology Research Leader (#16XD1400400).
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Jiang, D., Wu, C. Periods and (χ, b)-factors of cuspidal automorphic forms of symplectic groups. Isr. J. Math. 225, 267–320 (2018). https://doi.org/10.1007/s11856-018-1658-4
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DOI: https://doi.org/10.1007/s11856-018-1658-4