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IMI/Publicaţii/BASM/Ediţii/BASM n.2 (72) -n.3 (73), 2013/

On a four-dimensional hyperbolic manifold with finite volume

Authors: I. S. Gutsul

Abstract

In article [1] the authors construct and classify all the hyperbolic space-forms $H^n/\Gamma$ where $\Gamma$ is a torsion-free subgroup of minimal index in the congruence two subgroup $\Gamma_2^n$ for $n=3,4$. In the present paper some hyperbolic 3- and 4-manifolds are constructed that are absent in [1].

Institute of Mathematics and Computer Science
Academy of Sciences of Moldova
5 Academiei str., Chisinau, MD-2028
Moldova
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