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Special value formula for the twisted triple product L-function and an application to the restricted L2-norm problem

Special value formula for the twisted triple product L-function and an application to the... AbstractWe establish explicit Ichino’s formulae for the central values of thetriple product L-functions with emphasis on the calculations for the real place.The key ingredient for our computations is Proposition 8which generalizes a result in [P. Michel and A. Venkatesh,The subconvexity problem for GL2{\rm GL}_{2},Publ. Math. Inst. Hautes Études Sci. 111 2010, 171–271].As an application we prove the optimal upper bound of a sum of restricted L2{L^{2}}-normsof the L2{L^{2}}-normalized newforms on certain quadratic extensions with prime level and boundedspectral parameter following the methods in [V. Blomer,On the 4-norm of an automorphic form,J. Eur. Math. Soc. (JEMS) 15 2013, 5, 1825–1852]. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Forum Mathematicum de Gruyter

Special value formula for the twisted triple product L-function and an application to the restricted L2-norm problem

Forum Mathematicum , Volume 33 (1): 50 – Jan 1, 2021

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References (75)

Publisher
de Gruyter
Copyright
© 2020 Walter de Gruyter GmbH, Berlin/Boston
ISSN
0933-7741
eISSN
1435-5337
DOI
10.1515/forum-2018-0292
Publisher site
See Article on Publisher Site

Abstract

AbstractWe establish explicit Ichino’s formulae for the central values of thetriple product L-functions with emphasis on the calculations for the real place.The key ingredient for our computations is Proposition 8which generalizes a result in [P. Michel and A. Venkatesh,The subconvexity problem for GL2{\rm GL}_{2},Publ. Math. Inst. Hautes Études Sci. 111 2010, 171–271].As an application we prove the optimal upper bound of a sum of restricted L2{L^{2}}-normsof the L2{L^{2}}-normalized newforms on certain quadratic extensions with prime level and boundedspectral parameter following the methods in [V. Blomer,On the 4-norm of an automorphic form,J. Eur. Math. Soc. (JEMS) 15 2013, 5, 1825–1852].

Journal

Forum Mathematicumde Gruyter

Published: Jan 1, 2021

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