On the virtual Betti numbers of arithmetic hyperbolic 3–manifolds
نویسندگان
چکیده
منابع مشابه
On the virtual Betti numbers of arithmetic hyperbolic 3--manifolds
An interesting feature of our argument is that although it uses arithmetic in an essential way, it is largely geometric; in particular there is no use of Borel’s theorem [1]. This makes Theorem 1.1 strictly stronger than [1] in this setting, since no congruence assumptions are made. We recall that a group is said to be large if it has a subgroup of finite index which maps onto a free group of r...
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ژورنال
عنوان ژورنال: Geometry & Topology
سال: 2007
ISSN: 1364-0380,1465-3060
DOI: 10.2140/gt.2007.11.2265