Hybrid subconvexity bounds for L12,Sym2f⊗g

Fix an integer κ ⩾ 2 . Let P be prime and let k > κ be an even integer. For f a holomorphic cusp form of weight k and full level and g a primitive holomorphic cusp form of weight 2 κ and level P , we prove hybrid subconvexity bounds for L 1 2 , Sym 2 f ⊗ g in the k and P aspects when P 13 64 + δ...

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Veröffentlicht in:Mathematische Zeitschrift 2016, Vol.283 (1-2), p.555-579
Hauptverfasser: Holowinsky, Roman, Munshi, Ritabrata, Qi, Zhi
Format: Artikel
Sprache:eng
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Zusammenfassung:Fix an integer κ ⩾ 2 . Let P be prime and let k > κ be an even integer. For f a holomorphic cusp form of weight k and full level and g a primitive holomorphic cusp form of weight 2 κ and level P , we prove hybrid subconvexity bounds for L 1 2 , Sym 2 f ⊗ g in the k and P aspects when P 13 64 + δ < k < P 3 8 - δ for any 0 < δ < 11 128 . These bounds are achieved through a first moment method (with amplification when P 13 64 < k ⩽ P 4 13 ).
ISSN:0025-5874
1432-1823
DOI:10.1007/s00209-015-1610-9