TY - JOUR AU - Bratteli, Ola AU - Goodman, Frederick M. TI - Derivations Tangential to Compact Group Actions: Spectral Conditions in the Weak Closure JO - Canadian journal of mathematics PY - 1985 SP - 160 EP - 192 VL - 37 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1985-012-2/ DO - 10.4153/CJM-1985-012-2 ID - 10_4153_CJM_1985_012_2 ER -