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math.AT2006
Homological category weights and estimates for cat^1(X,ξ)
Michael Farber, Dirk Schuetz
In this paper we study a new notion of category weight of homology classes developing further the ideas of E. Fadell and S. Husseini. In the case of closed smooth manifolds the hom…
math.AT2006★ 1 cited
Novikov-Betti numbers and the fundamental group
Michael Farber, Dirk Schuetz
We prove that nonvanishing of the first Novikov-Betti number implies that the fundamental group contains a nonabelian free subgroup.