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Topological invariants of quasi-ordinary singularities


About this Title

Joseph Lipman

Publication: Memoirs of the American Mathematical Society
Publication Year 1988: Volume 74, Number 388
ISBNs: 978-0-8218-2451-1 (print); 978-1-4704-0808-4 (online)
DOI: http://dx.doi.org/10.1090/memo/0388
MathSciNet review: 954947
MSC (1991): Primary 14B05; Secondary 32C40, 57Q45

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Table of Contents


Chapters

  • Topological invariants of quasi-ordinary singularities (by Joseph Lipman)
  • Introduction
  • Part I. Rational equivalence and local homology in codimension one
  • 1. Local fundamental class map
  • 2. Codimension one cycles at quotient singularities
  • 3. Quasi-ordinary singularities
  • 4. Presentation of the group
  • Part II. The hypersurface case
  • 5. Characteristics monomials of quasi-ordinary parametrizations
  • 6. Topological invariance of the reduced branching sequence
  • 7. Appendix: The singular locus
  • Embedded topological classification of quasi-ordinary singularities (by Yih-Nan Gau)
  • Introduction
  • 1. Statement of main results
  • 2. Some plane sections of and two key lemmas
  • 3. Topological invariants
  • 4. Proof of the main theorem
  • Appendix (by J. Lipman)