Streams, prestreams, and d-spaces

Here is the list of posts on streams, prestreams, d-spaces, and possibly other notions of topological spaces with a local direction of time.

1. Prestreams and d-spaces
2. From prestreams to streams
3. Sheaves and streams I: sheaves of locally monotone maps
4. Sheaves and streams II: sheafification, and stratified étale maps

— Jean Goubault-Larrecq