The 3-primary classifying space of the fiber of the double suspension

Stephen D. Theriault

Research output: Contribution to journalArticle

6 Citations (Scopus)


Gray showed that the homotopy fiber W-n of the double suspension S2n-1 <(E-2)under right arrow> Omega S-2(2n+1) has an integral classifying space BWn, which fits in a homotopy fibration S2n-1 <(E-2)under right arrow> Omega S-2(2n+1) <(nu)under right arrow>BWn. In addition, after localizing at an odd prime p, BWn is an H- space and if p >= 5, then BWn is homotopy associative and homotopy commutative, and nu is an H-map. We positively resolve a conjecture of Gray's that the same multiplicative properties hold for p = 3 as well. We go on to give some exponent consequences.

Original languageEnglish
Pages (from-to)1489-1499
Number of pages11
JournalProceedings of the American Mathematical Society
Issue number4
Early online date21 Dec 2007
Publication statusPublished - Apr 2008


  • double suspension
  • H-space
  • exponent
  • homotopy-groups
  • exponents

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