Geodesic
Methods of finding the global minimum of a quasi-concave function
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 23 (1983) no. 2, pp. 307-313

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The class of multi-extremal problems in which the minimum of a quasi-concave function in a convex compact set is sought, is considered. Methods are given for finding the global extremum, consisting of the minimization of linear functions of a specially chosen family. Estimates are proved for the approximate solution of the problem, dependent on the accuracy of the approximation of the convex sets by polyhedra. 
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     author = {N. S. Vasil'ev},
     title = {Methods of finding the global minimum of a quasi-concave function},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
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     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1983_23_2_a6/}
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N. S. Vasil'ev. Methods of finding the global minimum of a quasi-concave function. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 23 (1983) no. 2, pp. 307-313. http://geodesic.mathdoc.fr/item/ZVMMF_1983_23_2_a6/