Journal of Applied Mathematics
Volume 2013 (2013), Article ID 494857, 9 pages
Research Article

On IVF Approximating Spaces

1Department of Mathematics, South China University of Technology, Guangzhou, Guangdong 510640, China
2College of Mathematics and Information Science, Guangxi University, Nanning, Guangxi 530004, China
3College of Science, Guangxi University for Nationalities, Nanning, Guangxi 530006, China

Received 4 March 2013; Accepted 21 June 2013

Academic Editor: Jinde Cao

Copyright © 2013 Dingwei Zheng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We introduce the concept of IVF approximating spaces and obtain decision conditions that every IVF topological space is an IVF approximating space.