TY - JOUR AU - Granirer, Edmond E. TI - On group representations whose $C^*$ algebra is an ideal in its von Neumann algebra JO - Annales de l'Institut Fourier PY - 1979 SP - 37 EP - 52 VL - 29 IS - 4 PB - Institut Fourier PP - Grenoble UR - http://www.numdam.org/articles/10.5802/aif.765/ DO - 10.5802/aif.765 LA - en ID - AIF_1979__29_4_37_0 ER -