Peng-Fei Yan, Xing-Yu Hu, Li-Hong Xie
In this paper, the concept of k-upper semi-continuous set-valued mappings is introduced. Using this concept, we give characterizations of k-semistratifiable and k-MCM spaces, which answers a question posed by Xie and Yan.
© 2001-2024 Fundación Dialnet · Todos los derechos reservados