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arxiv: 1303.0545 · v1 · pith:O32CRWUVnew · submitted 2013-03-03 · 🧮 math.NT

Complex multiplication cycles and Kudla-Rapoport divisors

classification 🧮 math.NT
keywords cyclesshimuraunitaryagreecasescoefficientscomplexconjectures
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We study the intersections of special cycles on a unitary Shimura variety of signature (n-1,1), and show that the intersection multiplicities of these cycles agree with Fourier coefficients of Eisenstein series. The results are new cases of conjectures of Kudla, and suggest a Gross-Zagier theorem for unitary Shimura varieties.

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