Systole of congruence coverings of arithmetic hyperbolic manifolds

2016/10/12 by Murillo, Plinio G. P. · 2 citations
#11E88 #15A66 #32Q05 #53C22 #Differential Geometry (math.DG) #FOS: Mathematics #Number Theory (math.NT) #Rings and Algebras (math.RA)

paper · doi:10.48550/arxiv.1610.03870

Abstract

In this paper we prove that, for any arithmetic hyperbolic n-manifold M of the first type, the systole of most of the principal congruence coverings M_I satisfy sys₁(M_I)≥ (8)/(n(n+1))log(vol(M_I))-c, where c is a constant independent of I. This generalizes previous work of Buser and Sarnak, and Katz, Schaps and Vishne in dimension 2 and 3. As applications, we obtain explicit estimates for systolic genus of hyperbolic manifolds studied by Belolipetsky and the distance of homological codes constructed by Guth and Lubotzky. In an appendix together with Cayo Dória we prove that the constant (8)/(n(n+1)) is sharp.

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