On estimates for solutions of systems of convex inequalities
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 55 (2015) no. 9, pp. 1486-1492

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The distance from a given point to the solution set of a system of strict and nonstrict inequalities described by convex functions is estimated. As consequences, estimates for the distance from a given point to the Lebesgue set of a convex function are obtained and sufficient conditions for convex-valued set-valued mappings to be covering are established.
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     author = {A. V. Arutyunov and S. E. Zhukovskiy},
     title = {On estimates for solutions of systems of convex inequalities},
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A. V. Arutyunov; S. E. Zhukovskiy. On estimates for solutions of systems of convex inequalities. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 55 (2015) no. 9, pp. 1486-1492. http://geodesic.mathdoc.fr/item/ZVMMF_2015_55_9_a3/