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By Shigeo Kusuoka, Toru Maruyama. - Turnpike Properties For Nonconcave Problems (Alexander J. Zaslavski). - A Characterization of Quasi-Concave Function in View of the Integrability Theory (Yuhki Hosoya).
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.