Abstract
We consider \(M^n,\,n\ge 3\), umbilic-free hypersurfaces in the Euclidean space, with nonvanishing principal curvatures. We prove that \(M\) is a Laguerre isoparametric hypersurface if, and only if, it is a cyclide of Dupin or a Dupin hypersurface with constant Laguerre curvatures.
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