- Algebraic General Topology (created by Victor Porton)
- Algebraic Topology Discussion Group (created by Don Davis)
- Algebraic Topology Problem List (created by Mark Hovey)
- Topology Atlas (created by Stephen Watson and Dmitri Shakhamatov)
- Carmen Rovi’s archive of videos
- Cohomology of the Steenrod Algebra charts (created by Bob Bruner)
- Lots of Ext charts and Steenrod algebra calculational stuff (created by Christian Nassau)
- The Cubic Surface Homepage
- The Geometry Center (University of Minnesota)
- The Geometry and Topology of Three-Manifolds by William P. Thurston, also available by ftp
- Great Geometry Resources Lots of useful links for teaching purposes
- Group Action Forum Focuses on the notion of group and the concept of symmetry in the mathematical sciences, particularly, the development, influence and application of the theory of transformation groups and related topics.
- George Hart’s web site Lots of interesting geometry and topology related artworks
- The Hauptvermutung Book & Ends of Complexes (advertisement and ordering information)
- Juegos topol�gicos (maintained by Jos� Rodr�guez)
- Milnor’s Lectures on the h-cobordism theorem, Mathematical Notes 1, Princeton, 1965
- Knots bibliography compiled by Joyce Riley (ascii file 672381K)
- The KnotPlot Site, see also Celtic Clip Art at Ceolas for lots of Celtic knots
- The Manifold Atlas
- MathGate Geometry & Topology links
- The
*n*-Category Caf� A group blog on math, physics and philosophy - Andrew Ranicki’s Homepage Full of interesting bits and pieces
- Singular This is a Computer Algebra System for polynomial computations with special emphasis on the needs of commutative algebra, algebraic geometry, and singularity theory
- The Stacks Project Open source textbook and reference work on algebraic stacks and the algebraic geometry needed to define them.
- Symbolic Sculptures and Mathematics, created by Ronnie Brown
- TiCS-Topology in Computer Science (an e-mail discussion list)
- Topological Commentary Contains news of topologists, news of interest to topologists, interviews, memorials, and book reviews. Entries are solicited from interested parties.
- Topological notes collected by Greg Friedman

## Preprint archives and electronic journals

- Algebraic & Geometric Topology (AGT) (Electronic Journal: published at Warwick, Editors-in-Chief, Bob Oliver for Algebraic Topology and Marty Scharlemann for Geometric Topology)
**arXiv archive**(formerly the**xxx archive**) mirror sites:- Geometry and Topology (Electronic Journal: published at Warwick & Berkeley, managing editors J. Jones, C. Rourke, B. Sanderson)
- Groups, Representations and Cohomology Preprint Archive run by Dave Benson
- Homology, Homotopy and Applications.
- Hopf Algebraic Topology Archive (Purdue University: run by Clarence Wilkerson)
- JP Journal of Geometry and Topology
- Journal of Homotopy and Related Structures
- Journal of Topology
*K*-theory Archive (organised by Daniel Grayson & Rick Jardine)- The Mathematics Preprint Server
- Tbilisi Mathematical Journal
- Theory and Applications of Categories
- Topology (access only available to subscribers)
- Topology and its applications (access only available to subscribers)

## Other resources related to Topology

- ATLAS of Finite Group Representations
- Catalogue of Lattices
- Greg Egan’s Home Page Lots of lovely animations and pictures of mathematical and physicsy things. See especially the Applets Gallery which has an animation of the
*Dirac belt trick*. - Group Pub Forum
- James Harrison: Art and Design
- The Moonshine Page
- Number Theory Web
- Sloane’s On-Line Encyclopedia of Integer Sequences
- The Mathematical Atlas – a gateway to modern Mathematics. This contains a useful general introduction to Geometry & Topology.
- MathWorld: Eric Weisstein’s World of Mathematics
- The Mathematics Genealogy Project – family trees of mathematicians
- David A. Richter: Mathematical models
- Daniel Murfet: The Rising Sea – impressive and growing collection of notes on aspects of algebraic geometry and relevant algebra.

This page is currently maintained by Thomas Huettemann. Please send me suggested items to add.

(updated 2019-07-30)

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