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 Sphere-foliated minimal and constant mean curvature hypersurfaces in product spaces Bull. Korean Math. Soc. 2011 Vol. 48, No. 2, 335-342 https://doi.org/10.4134/BKMS.2011.48.2.335Printed March 1, 2011 Keomkyo Seo Sookmyung Women's University Abstract : In this paper, we prove that minimal hypersurfaces when $n\geq 3$ and nonzero constant mean curvature hypersurfaces when $n\geq2$ foliated by spheres in parallel horizontal hyperplanes in ${\mathbb{H}}^n \times \mathbb{R}$ must be rotationally symmetric. Keywords : foliation, constant mean curvature, rotationally symmetric hypersurface, product space MSC numbers : 53A10, 53C42 Downloads: Full-text PDF