Faculty of Mathematics ‘Al.I. Cuza’ University of Iasi
2009 Volume 63 Issue 2 Pages 339-345
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In this paper we prove that a constant mean curvature surface is proper-biharmonic in the unit Euclidean sphere S4 if and only if it is minimal in a hypersphere S3(1/√2).
Memoirs of the Faculty of Science, Kyushu University. Series A, Mathematics
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