Biquotients with singly generated rational cohomology
classification
🧮 math.DG
math.AT
keywords
biquotientscohomologygeneratedrationalspherebiquotientclassifyconsequence
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We classify all biquotients whose rational cohomology rings are generated by one element. As a consequence we show that the Gromoll-Meyer 7-sphere is the only exotic sphere which can be written as a biquotient.
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