2024-03-29T15:54:49Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/689042022-11-17T02:08:08Zhdl_2115_45007hdl_2115_116The Euler number of a topologically stable singular surface in a 3-manifoldIzumiya, S.Marar, W.L.410A formula for the Euler number of a generic singular surface in a 3-manifold is given. This formula not only unifies the previous results but also allows some new applications.Department of Mathematics, Hokkaido UniversityDepartmental Bulletin Paperapplication/pdfhttp://hdl.handle.net/2115/68904info:doi/10.14943/83302https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/68904/1/pre158.pdfHokkaido University Preprint Series in Mathematics1581111992-07engpublisher