TY - JOUR AU - J. Rappaz TI - Approximation of the Spectrum of a Non-Compact Operator Given by the Magnetohydrodynamic Stability of a Plasma. JO - Numerische Mathematik PY - 1977 SP - 15 EP - 24 VL - 28 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1977__28_132472/ ID - NUMA_1977__28_132472 ER -