2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/229989In the paper the old results on probabilities of small balls for stable measures in a Hilbert space, obtained in 1977 and remaining unpublished, are presented. Apart of historical value these results are interesting even now, since they are comparable with recently obtained ones.15 pagesProbability60B11; 60E07text