@article{AIF_1978__28_1_1_0, author = {de la Harpe, Pierre and Karoubi, Max}, title = {Perturbations compactes des repr\'esentations d'un groupe dans un espace de {Hilbert.} {II}}, journal = {Annales de l'Institut Fourier}, pages = {1--25}, publisher = {Institut Fourier}, address = {Grenoble}, volume = {28}, number = {1}, year = {1978}, doi = {10.5802/aif.679}, mrnumber = {58 #6052}, zbl = {0331.46052}, language = {fr}, url = {http://www.numdam.org/articles/10.5802/aif.679/} }