An arithmetic intersection formula on Hilbert modular surfaces

Tonghai Yang

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arXiv · 1008.1853

An arithmetic intersection formula on Hilbert modular surfaces

Tonghai Yang

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Abstract

In this paper, we obtain an explicit arithmetic intersection formula on a Hilbert modular surface between the diagonal embedding of the modular curve and a CM cycle associated to a non-biquadratic CM quartic field. This confirms a special case of the author's conjecture with J. Bruinier in \cite{BY}, and is a generalization of the beautiful factorization formula of Gross and Zagier on singular moduli. As an application, we proved the first non-trivial non-abelian Chowla-Selberg formula, a special case of Colmez conjecture.

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Tonghai Yang. 2010-08-11. An arithmetic intersection formula on Hilbert modular surfaces. https://arxiv.org/abs/1008.1853

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