Efficient combination of two lower bound functions in univariate global optimization

We propose a new method for solving univariate global optimization problems by combining a lower bound function of ®BB method (see [1]) with the lower bound function of the method developed in [4]. The new lower bound function is better than the two lower bound functions. We add the convex/concave test and pruning step which accelerate the convergence of the proposed method. Illustrative examples are treated efficiently.

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