TY - JOUR AU - Donnelly, Harold TI - Negative Curvature and Embedded Eigenvalues. JO - Mathematische Zeitschrift PY - 1990 VL - 203 IS - 2 SP - 301 EP - 308 KW - negative sectional curvature; essential spectrum; Laplacian; decay conditions UR - http://eudml.org/doc/174129 ER -