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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Free actions and complex cobordism

Authors: Connor Lazarov and Arthur G. Wasserman
Journal: Proc. Amer. Math. Soc. 47 (1975), 215-217
MathSciNet review: 0350759
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Abstract: Connor and Floyd have observed that a free action of a finite group $ G$ on a compact manifold $ M$ preserving a stable almost complex structure produces a stably almost complex quotient manifold $ M/G$. Hence, the bordism group of such actions, $ U_ \ast ^{G,{\text{free}}}$, is just $ {U_ \ast }(BG)$. If $ G$ is not finite or abelian, but an arbitrary compact Lie group, the tangent bundle along the fibres gives trouble. Nevertheless, it is shown that if $ {H^ \ast }(BG)$ is torsion free then $ U_ \ast ^{G,{\text{free}}} \approx {U_ \ast }(BG)$.

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Additional Information

PII: S 0002-9939(1975)0350759-2
Keywords: Free actions, complex bordism
Article copyright: © Copyright 1975 American Mathematical Society

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