Algebraic Topology Discussion List This list is maintained by Don Davis. To subscribe or unsubscribe or post a message for the list, send e-mail to dmd1@lehigh.edu. The primary functions of this list are the first three items listed below: providing abstracts of papers posted to the Hopf archive, providing information about topology conferences, and serving as a forum for topics related to algebraic topology. This website also serves as an archive of links to websites related to algebraic topol ...

Cascade Topology Seminar The Cascade Topology Seminar is a bi-annual gathering of topologists from the Pacific Northwest and Southwestern Canada. Meetings Information regarding the next meeting. Limited support from the National Science Foundation is available for participants in these meetings without grant support. First priority will go to graduate students and faculty from regional universities. Participants from other universities may be supported if funds are availabl ...

Hopf Topology Archive Welcome to the Hopf Topology Archive! NOTICE: Hopf has been moved to a virtual website on the Math department server. Most things should be transparent if you use http://hopf.math.purdue.edu as the URL. The FTP service will not be reactivated due to security concerns. If you experience problems, please report them to wilker@math.purdue.edu Thank you. This site is maintained by Clarence Wilkerson. Downloads are accessible by HTTP. Uploads must be done using HTTP. FTP se ...

What is Topology? A short and idiosyncratic answer Robert Bruner Basically, topology is the modern version of geometry, the study of all different sorts of spaces. The thing that distinguishes different kinds of geometry from each other (including topology here as a kind of geometry) is in the kinds of transformations that are allowed before you really consider something changed. (This point of view was first suggested by Felix Klein, a famous German mathematician of the late 1800 and earl ...