Abstract
An invariant q-sphere for (T, Σn) is an embedded (locally flat in the p.l. case) homotopy sphere Σq ⊂ Σn which is invariant under T. An invariant Σq for (T, Σn) is called characteristic if there is an equivariant homotopy equivalence f: (T, Σn) → (a, Sn), (a = antipodal map) such that f is t-regular at Sq ⊂Sn and f −1 (Sq) = Σq.
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© 1971 Springer-Verlag Berlin Heidelberg
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López de Medrano, S. (1971). Codimension 2 Invariant Spheres. In: Involutions on Manifolds. Ergebnisse der Mathematik und ihrer Grenzgebiete, vol 59. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-65012-3_8
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DOI: https://doi.org/10.1007/978-3-642-65012-3_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-65014-7
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