TY - JOUR AU - Hideo Muto TI - The First Eigenvalue of the Laplacian of an Isoparametric Minimal Hypersurface in a Unit Sphere. JO - Mathematische Zeitschrift PY - 1988 SP - 531 EP - 550 VL - 197 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1988__197_1_183749/ ID - MZ_1988__197_1_183749 ER -