


TTT on WWW The Transpennine Topology Triangle is a topology seminar partially supported by the London Mathematical Society with vertices at Leicester , Manchester and Sheffield. www.greenlees.staff.shef.ac.uk/ttt/ttt.html   What is Topology? An introductory essay by Neil Strickland , University of Sheffield. xtsunxet.usc.es/oubina/Wurble.htm  


