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Mock period functions, sesquiharmonic Maass forms, and non-critical values of L-functions

Bringmann, Kathrin; Diamantis, Nikolaos; Raum, Martin


Kathrin Bringmann

Martin Raum


We introduce a new technique of completion for 1-cohomology which parallels the corresponding technique in the theory of mock modular forms. This technique is applied in the context of non-critical values of L-functions of GL(2) cusp forms. We prove that a generating series of non-critical values can be interpreted as a mock period function we
define in analogy with period polynomials. Further, we prove that non-critical values can be encoded into a sesquiharmonic Maass form. Finally, we formulate and prove an Eichler-Shimura-type isomorphism for the space of mock period functions.


Bringmann, K., Diamantis, N., & Raum, M. (2013). Mock period functions, sesquiharmonic Maass forms, and non-critical values of L-functions. Advances in Mathematics, 233(1), 115-134.

Journal Article Type Article
Acceptance Date Sep 27, 2012
Online Publication Date Oct 31, 2012
Publication Date Jan 30, 2013
Deposit Date Apr 17, 2014
Publicly Available Date Apr 17, 2014
Journal Advances in Mathematics
Print ISSN 0001-8708
Electronic ISSN 0001-8708
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 233
Issue 1
Pages 115-134
Public URL
Publisher URL
Additional Information NOTICE: this is the author’s version of a work that was accepted for publication in Advances in Mathematics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Advances in Mathematics, 233(1) (2013), 115-134. doi: 10.1016/j.aim.2012.09.025


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