The British Topology Home Page

Rotating Immortality - a Möbius Band in the form of a Trefoil Knot by John Robinson with graphics by Ronnie Brown and Cara Quinton. Borrowed from
`Symbolic Sculptures and Mathematics'.

Important News: After more than two decades this web site will soon move to a new home at Queens University Belfast where it will be maintained by Thomas Hüttemann. The Conferences and meetings page will no longer be maintained, instead organisers should put information directly into

This site is intended to act as a convenient source of pointers to Topology-related sites, including archives and conference announcements. It is not intended to be part of a British archive as such, but pointers to useful sites will be included to form a `nonlocalised' archive. Although intended mainly for British and general European use, it will include references to other parts of the world. To have items included, either email them to me or (preferably) send addresses of existing web documents. Conference notices and other items with a finite lifetime will normally be removed when the advertised events have occurred.

Please let me know of any errors or links that you would like to see included. I would be grateful for comments on the structure and contents of this site. Anyone wishing to set up and maintain a subsidiary page of this site is encouraged to do so.

Andrew Baker (email)

Some comments by Frank Adams

All his writings are enlivened by witty remarks that he also used as a lecturer to keep the attention of his audience. Some of these remarks have become classics, like his description of a spectral sequence, one of the machineries of algebraic topology to compute invariants by a complicated iterative algebraic procedure:

In case the machinery of algebraic topology ever seemed too daunting, he would comfort the reader with the words

The cyclist's guide to the Klein bottle

Taken from the SLIDE Klein Bottle Project by Nerius Landys and Shad Roundy


ACME Klein Bottles Acme has conquered topological and engineering frontiers to manufacture genuine glass Klein Bottles. These are the finest closed, non-orientable, boundary-free manifolds sold anywhere in our three spatial dimensions. These elegant bottles make great gifts, fantastic displays, and inferior mouse-traps. With its circle of singularities, it can be said to exist inside of itself - especially handy during time-reversals. A topologist's delight, hand crafted in glass.

Rotating Immortality by John Robinson with graphics by Nick Mee of Virtual Image. Borrowed from
`Symbolic Sculptures and Mathematics'

Last updated on 02/10/2017 Page maintained by   Andrew Baker