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  The construction of Green currents and singular theta lifts for unitary groups

Funke, J., & Hofmann, E. (2021). The construction of Green currents and singular theta lifts for unitary groups. Transactions of the American Mathematical Society, 374(4), 2909-2947. doi:10.1090/tran/8289.

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Funke-Hofmann_The construction of green currents and singular theta lifts for unitary groups_2021.pdf (Publisher version), 448KB
 
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 Creators:
Funke, Jens1, Author           
Hofmann, Eric, Author
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1Max Planck Institute for Mathematics, Max Planck Society, ou_3029201              

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Free keywords: Mathematics, Number Theory
 Abstract: With applications in the Kudla program in mind we employ singular theta lifts for the reductive dual pair $U(p,q)\times U(1,1)$ to construct two different kinds of Green forms for codimension $q$-cycles in Shimura varieties associated to unitary groups. We establish an adjointness result between our singular
theta lift and the Kudla-Millson lift. Further, we compare the two Greens forms and obtain modularity for the generating function of the difference of the two Green forms. Finally, we show that the Green forms obtained by the singular theta lift satisfy an eigenvalue equation for the Laplace operator and conclude that our Green forms coincide with the ones constructed by Oda and Tsuzuki by different means.

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Language(s): eng - English
 Dates: 2021
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: arXiv: 1903.00262
DOI: 10.1090/tran/8289
 Degree: -

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Title: Transactions of the American Mathematical Society
  Alternative Title : Trans. Amer. Math. Soc.
Source Genre: Journal
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Publ. Info: American Mathematical Society
Pages: - Volume / Issue: 374 (4) Sequence Number: - Start / End Page: 2909 - 2947 Identifier: -