tended abstract of this work appears in the proceedings of the 16th Symposium on Theoretical Aspects of Computer Science (STACS’99), Springer, LNCS, held in Trier, Fed. Rep. of G...
We consider the concepts of a t-total vertex cover and a t-total edge cover (t 1), which generalize the notions of a vertex cover and an edge cover, respectively. A t-total verte...