Regular Generalized Star Star closed sets in Bitopological Spaces Year: 2011 Volume: 5 Issue: 6 921 - 923 Pages Authors: K. Kannan D. Narasimhan K. Chandrasekhara Rao R. Ravikumar Abstract: The aim of this paper is to introduce the concepts of τ1τ2-regular generalized star star closed sets , τ1τ2-regular generalized star star open sets and study their basic properties in bitopological spaces. Keywords: τ1τ2-regular closed sets τ1τ2-regular open sets τ1τ2-regular generalized closed sets τ1τ2-regular generalized star closed sets τ1τ2-regular generalized star star closed sets.