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Strong wavefront lemma and counting lattice points in sectors

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Abstract

We compute the asymptotics of the number of integral quadratic forms with prescribed orthogonal decompositions and more generally, the asymptotics of the number of lattice points lying in sectors of affine symmetric spaces. A new key ingredient in this article is the strong wavefront lemma, which shows that the generalized Cartan decomposition associated to a symmetric space is uniformly Lipschitz.

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Correspondence to Alexander Gorodnik.

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The first and the second authors partially supported by NSF 0400631 and NSF 0333397, respectively.

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Gorodnik, A., Oh, H. & Shah, N. Strong wavefront lemma and counting lattice points in sectors. Isr. J. Math. 176, 419–444 (2010). https://doi.org/10.1007/s11856-010-0035-8

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  • DOI: https://doi.org/10.1007/s11856-010-0035-8

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