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Differential Characterization of Quasi-Concave Functions without Twice Differentiability. (arXiv:2209.03989v1 [math.OC]) http://arxiv.org/abs/2209.03989
Differential Characterization of Quasi-Concave Functions without Twice Differentiability. (arXiv:2209.03989v1 [math.OC]) http://arxiv.org/abs/2209.03989