Before revision:  This brand-new technique is then used to transform the sojourn time distribution of non-purging (n,k) fork-join queues to a linear combination of the sojourn time distributions of basic (k,k)\sim (n,n) fork-join queues.
After revision:  This brand-new technique is then used to transform the sojourn time of non-purging (n,k) fork-join queues to a linear combination of the sojourn time distributions of basic (k,k)\sim (n,n) fork-join queues.