Abstract
This is a survey of local and global classification results concerning Dupin hypersurfaces in Sn (or Rn) that have been obtained in the context of Lie sphere geometry. The emphasis is on results that relate Dupin hypersurfaces to isoparametric hypersurfaces in spheres. Along with these classification results, many important concepts from Lie sphere geometry, such as curvature spheres, Lie curvatures, and Legendre lifts of submanifolds of Sn (or Rn), are described in detail. The paper also contains several important constructions of Dupin hypersurfaces with certain special properties.
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Cecil, T.E. Classifications of Dupin hypersurfaces in Lie sphere geometry. Acta Math Sci 44, 1–36 (2024). https://doi.org/10.1007/s10473-024-0101-7
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DOI: https://doi.org/10.1007/s10473-024-0101-7
Key words
- Dupin hypersurfaces
- isoparametric hypersurfaces
- Lie sphere geometry
- Lie sphere transformations
- Lie curvatures