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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...
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problems of re-switching of techniques raised by the "Capital Controversy", which are only relevant for the stability of the …
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investment. Next, we define the unifying principle behind the analyses of these different approaches as regards the stability of …
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must be careful with the stability and the possible asymmetry of Okun’s Law. We apply these ideas to the Portuguese economy … in order to obtain an estimated Okun Law. We can conclude by the temporal stability of a dynamic formulation of the Law …
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