## Borsuk-Ulam theorems for arbitrary $$S^ 1$$actions and applications.(English)Zbl 0506.58010

### MSC:

 58E05 Abstract critical point theory (Morse theory, Lyusternik-Shnirel’man theory, etc.) in infinite-dimensional spaces 55N25 Homology with local coefficients, equivariant cohomology 57R70 Critical points and critical submanifolds in differential topology

Zbl 0403.57001
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