Volume 30 • Number 2 • 2007   • On Some Maps Concerning ga-Open Sets M. Caldas, S. Jafari and R.K. Saraf Abstract. In this paper, we consider a new generalization of a-open maps via the concept of ga-closed sets which we call approximately a-open maps. We study some of its fundamental properties. It turns out that we can use this notion to obtain a new characterization of a-T1/2 spaces. 2000 Mathematics Subject Classification: 54B05, 54C08 Full text: PDF