Bak groups and equivariant surgery

Masaharu Morimoto

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


There has been a popular mistake in equivariant surgery theory for almost a decade. This paper introduces Bak groups, presents their geometric role, and corrects the mistake. The form parameters of A. Bak shed light on the connection of involutions on manifolds to surgery on manifolds.

Original languageEnglish
Pages (from-to)465-483
Number of pages19
Issue number4
Publication statusPublished - Jul 1 1989


  • Bak groups
  • G-surgery
  • Wall groups
  • form parameter
  • gap hypothesis
  • quadratic module

ASJC Scopus subject areas

  • Mathematics(all)

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