Nour, Chadi; Stern, Ron J.; Takche, Jean; SAS; 200502681; 198790400; Computer Science and Mathematics; jtakchi@lau.edu.lb; chadi.nour@lau.edu.lb (2016-04-08)
We consider sets S С R satisfying a certain exterior sphere condition, and it is shown that under wedgedness of S, it coincides with φ-convexity. We also offer related improvements concerning the union of uniform closed ...