H-hypersurfaces with at most 3 distinct principal curvatures in the   Euclidean spaces
  In this paper, we study hypersurfaces of Euclidean spaces with arbitrary dimension. First, we obtain some results on $\mbox{H}$-hypersurfaces. Then, we give the complete classification of $\mbox{H}$-hypersurfaces with 3 distinct curvatures. We also give explicit examples. 
Nurettin Cenk Turgay
math.DG