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A classification of harmonic weak Maass forms of half-integral weight

Alfes-Neumann, C. (author)
Universität Bielefeld,Bielefeld University
Raum, Martin (author)
Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper,Department of Mathematical Sciences,Chalmers tekniska högskola,Chalmers University of Technology
 (creator_code:org_t)
2023
2023
English.
In: Research in Number Theory. - 2522-0160 .- 2363-9555. ; 9:3
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We classify Harish-Chandra modules generated by the pullback to the metaplectic group of harmonic weak Maass forms with exponential growth allowed at the cusps. This extends work by Schulze-Pillot and parallels recent work by Bringmann-Kudla, who investigated the case of integral weights. We realize each of our cases via a regularized theta lift of an integral weight harmonic weak Maass form. Harish-Chandra modules in both integral and half-integral weight that occur need not be irreducible. Therefore, our display of the role that the theta lifting takes in this picture, we hope, contributes to an initial understanding of a theta correspondence for extensions of Harish-Chandra modules.

Subject headings

NATURVETENSKAP  -- Matematik (hsv//swe)
NATURAL SCIENCES  -- Mathematics (hsv//eng)

Keyword

Primary: 11F12
Secondary: 11F27
11F70
modular-forms
cm values
coefficients
formulas
series
traces
Mathematics

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ref (subject category)
art (subject category)

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Raum, Martin
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University of Gothenburg
Chalmers University of Technology

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