Homotopy operations and the obstructions to being an H-space

Research output: Contribution to journalArticlepeer-review


We describe an obstruction theory for a given topological space X to be an H-space, in terms of higher homotopy operations and show how this theory can be used to calculate such operations in certain cases.

Original languageEnglish
Pages (from-to)497-515
Number of pages19
JournalManuscripta Mathematica
Issue number1
StatePublished - Dec 1995


  • 1991 Mathematics Subject Classification: Primary 55P45, Secondary 55Q35
  • II-algebra
  • Toda bracket
  • higher homotopy operations

ASJC Scopus subject areas

  • General Mathematics


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