ON Q-BITOPOLOGICAL SPACES

We study here T0-Q-bitopological spaces and sober Q-bitopological spaces and their relationship with two particular Sierpinski objects in the category of Q-bitopological spaces. The epire ective hulls of both these Sierpinski objects in the category of Q-bitopological spaces turn out to be the category of T0-Q-bitopological spaces. We show that only one of these Sierpinski objects is sober Q-bitopological space and its epire ective hull in the category of T0-Q-bitopological spaces turns out to be the category of saturated T0-Q- bitopological spaces.