Exact Cohomology Sequences with Integral Coefficients for Torus Actions

@inproceedings{FranzExactCS,
  title={Exact Cohomology Sequences with Integral Coefficients for Torus Actions},
  author={M. Franz and Volker Puppe}
}
Using methods applied by Atiyah in equivariant K-theory, Bredon obtained exact sequences for the relative cohomologies (with rational coefficients) of the equivariant skeletons of (sufficiently nice) T-spaces X, T = (S 1) n , with free equivariant cohomology H * T (X; Q) over H * T (pt; Q) = H * (BT ; Q). Here we characterise those finite T-CW complexes with connected isotropy groups for which an analogous result holds with integral coefficients. 
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