Categories of dicompact bi-t₂ texture spaces and a banach-stone theorem

The principal aim of this paper is to consider various aspects of the theory of dicompact bi-T₂ texture spaces, and place them in a categorical setting. It culminates in a version of the Banach-Stone theorem. On the way, a new class of textures, called here nearly plain textures, is seen to play a crucial role in the development of the theory.