Singular fibers And 4-dimensional cobordism group

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2 Citations (Scopus)


Using the technique of singular fibers of C stable maps, we give a new proof to the theorem, originally due to Rohlin, that the oriented cobordism group of 4-dimensional manifolds is infinite cyclic and is generated by the cobordism class of the complex projective plane. A byproduct is a new and transparent proof of the signature formula, originally due to T. Yamamoto and the author, for 4-dimensional manifolds in terms of singular fibers.

Original languageEnglish
Pages (from-to)233-256
Number of pages24
JournalPacific Journal of Mathematics
Issue number1
Publication statusPublished - 2010

All Science Journal Classification (ASJC) codes

  • Mathematics(all)


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