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Heights of Kudla-Rapoport divisors and derivatives of $$L$$ -functions.
- Source :
-
Inventiones Mathematicae . Jul2015, Vol. 201 Issue 1, p1-95. 95p. - Publication Year :
- 2015
-
Abstract
- We study special cycles on integral models of Shimura varieties associated with unitary similitude groups of signature $$(n-1,1)$$ . We construct an arithmetic theta lift from harmonic Maass forms of weight $$2-n$$ to the arithmetic Chow group of the integral model of a unitary Shimura variety, by associating to a harmonic Maass form $$f$$ a linear combination of Kudla-Rapoport divisors, equipped with the Green function given by the regularized theta lift of $$f$$ . Our main result is an equality of two complex numbers: (1) the height pairing of the arithmetic theta lift of $$f$$ against a CM cycle, and (2) the central derivative of the convolution $$L$$ -function of a weight $$n$$ cusp form (depending on $$f$$ ) and the theta function of a positive definite hermitian lattice of rank $$n-1$$ . When specialized to the case $$n=2$$ , this result can be viewed as a variant of the Gross-Zagier formula for Shimura curves associated to unitary groups of signature $$(1,1)$$ . The proof relies on, among other things, a new method for computing improper arithmetic intersections. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00209910
- Volume :
- 201
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Inventiones Mathematicae
- Publication Type :
- Academic Journal
- Accession number :
- 103364854
- Full Text :
- https://doi.org/10.1007/s00222-014-0545-9