Topological invariants of quasi-ordinary singularities / Joseph Lipman. Embedded topological classification of quasi-ordinary singularities / Yih-Nan Gau ; with an appendix by Joseph Lipman
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 $A_{d-1} \cong H_{2d-2}$ 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 $X$ and two key lemmas 3. Topological invariants 4. Proof of the main theorem Appendix (by J. Lipman)