I would like get the description of the action of the action of a collection { g_1,..,g_m} of elements of a group G of order n on the Cosets G/U_i for each i=1 ,...,n by right multiplication given a descending chain G=U_0>U_1>...>U_n-1>U_n=H of subgroups . How can i achieve this ? Tendai Sent from Samsung Mobile