Betti numbers of congruence groups
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It is shown that, for certain congruence families of Galois coverings of a manifold, the individual Betti numbers are polynomial periodic functions of the level. Similar results are proved for the dimensions of other spaces of automorphic forms.
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- Betti numbers of congruence groups
Israel Journal of Mathematics
Volume 88, Issue 1-3 , pp 31-72
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