Bondy and Chvatal [7] introduced a general and unified approach to a variety of graph-theoretic problems. They defined the k-closure Ck(G), where k is a positive integer, of a graph G of order n as the graph obtained from G by recursively joining pairs of nonadjacent vertices a,b satisfying the...

The purpose of this research is to examine the international insertion of Brazilian banking system, in comparison with the South Korean and Mexican experiences. Since the second half of the 1990s, these countries deepened the financial integration between their economies and international...