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A kind of cone-convexity for set-valued maps and its scalarization

LI Fei1,*   TANG Liping YANG Xinmin3   

  1. 1. School of Mathematical Sciences, Inner Mongolia University, Hohhot 010021, China; 2. College of Mathematics and Statistics, Chongqing Technology and Business University, Chongqing 400067, China; 3. School of Mathematical Sciences, Chongqing Normal University, Chongqing 400047, China
  • Received:2015-11-12 Online:2016-12-15 Published:2016-12-15

Abstract:

In this paper, we firstly introduce the notion of scalar cone-quasiconvexity for set-valued maps and discuss the relationships among several cone-convexities. A characterization for proper cone-quasiconvexity of set-valued maps is also given in the sense of a type of level set. Meanwhile, the composition rule of cone-convexity of set-valued maps is established by scalar increasing convex functions. We obtain a characterization for cone-quasiconvexity of set-valued maps by Gerstewitz functional finally.

Key words: set-valued maps, cone-convexity, Gerstewitz functional, scalarizations