Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for analyzing economic and financial data and sharing it with others. Getty Images, bymuratdeniz Real value is the ...

Recently it has been shown how various results on the behaviour of exact and approximate primal algorithms for certain discrete location problems can be obtained by studying the more general problem ...

Abstract. In this paper, we first investigate abstract convexity of non-negative increasing and radiant (IR) functions over a topological vector space X. We also characterize the essential results of ...