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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)

Semifree actions on finite groups on homotopy spheres


Author: John Ewing
Journal: Trans. Amer. Math. Soc. 245 (1978), 431-442
MSC: Primary 57S25; Secondary 57R85
MathSciNet review: 511421
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Abstract: We show that for any finite group the group of semifree actions on homotopy spheres of some fixed even dimension is finite, provided that the dimension of the fixed point set is greater than 2. The argument shows that for such an action the normal bundle to the fixed point set is equivariantly, stably trivial.


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DOI: http://dx.doi.org/10.1090/S0002-9947-1978-0511421-3
PII: S 0002-9947(1978)0511421-3
Article copyright: © Copyright 1978 American Mathematical Society