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math.GT2009★ 3 cited
Cohomology of preimages with local coefficients
Daciberg Lima Goncalves, Peter Wong
Let M,N and B\subset N be compact smooth manifolds of dimensions n+k,n and \ell, respectively. Given a map f from M to N, we give homological conditions under which g^{-1}(B) has n…
math.GT2007★ 14 cited
The classification and the conjugacy classes of the finite subgroups of the sphere braid groups
Daciberg Lima Gonçalves, John Guaschi
Let n\geq 3. We classify the finite groups which are realised as subgroups of the sphere braid group B_n(S^2). Such groups must be of cohomological period 2 or 4. Depending on the…