The International Category Theory Conference (CT) covers all areas of pure and applied category theory. Topics of interest include, but are not limited to: higher dimensional categories, categorical logic, applications of categories in algebra, topology, combinatorics, and other areas of mathematics, applications of category theory to computer science, physics and other mathematical sciences. Previous meetings in this series were held in Vancouver (2004), Como (2000), Coimbra (1999), Vancouver (1997), Halifax (1995), Tours (1994), Isle of Thorns (1992), Montreal (1991), and Como (1990). CT 2006 was held at the White Point Beach Resort in Nova Scotia (Canada). It was an active research-oriented conference, in something of an "Oberwolfach style". The seaside setting offered more opportunities for informal discussion and collaboration in the evenings than might have been the case in an urban setting. There were also many opportunities for recreational activities. All those interested in category theory and its applications were welcome. Post Conference The CT 2006 conference is now over. Many speakers have agreed to make copies of their slides available. If you are a speaker and haven't yet sent your slides, you are still welcome to do so and I will post them. Also, I hope that some people will send me their pictures of the conference, in particular the group photos. I will be happy to post them here. Slides of Presentations. Pictures by Pieter Hofstra. Pictures by Jürgen Koslowski. Group Photo by Jürgen Koslowski. Picture by Tom Leinster. Proceedings The proceedings of CT 2006 are being published as a special issue of the journal Theory and Applications of Categories (TAC). More articles will be added to the special issue as they are refereed and accepted. The proceedings are available from the following link: Proceedings of the International Category Theory Conference, CT 2006, Theory and Applications of Categories 19, 2007. Submission Procedure: To submit an article to the conference proceedings, please send your paper, by January 15, 2007, to any member of the TAC editorial board. Articles should be prepared in the TAC style and should be submitted electronically in Postscript or PDF format. Please be sure to indicate, along with your submission, that you wish your article to be considered for the "CT 2006 special issue". (The article should be related to your CT 2006 talk). Please also send a copy of your request to the TAC managing editor (in addition to whatever editor you are submitting to). All the articles received will be refereed by the same procedure, and to the same high standards, as any other paper submitted to TAC. Caveat: in the unlikely event that there will be very few submissions, the editors reserve the right to cancel the special issue. In this case, the successful articles will be published as part of a regular TAC volume. Special Session, Mac Lane and Eilenberg The conference included a special commemorative session in honor of the two founders of category theory, Saunders Mac Lane and Samuel Eilenberg. The session was organized and chaired by Bill Lawvere. Invited Speakers The conference had invited lectures by the following people: Kathryn Hess (EPF Lausanne) Steve Lack (University of Western Sydney) Tom Leinster (University of Glasgow) Steve Schanuel (SUNY Buffalo) Peter Selinger (Dalhousie University) Registration Registration is no longer available. The registration fees for CT 2006 were as follows: $150 - regular $100 - reduced (students, postdocs, and researchers without grant) For those who registered before March 1, the early registration rates were $120 (regular) and $75 (reduced). Accommodations, Maps, Directions The Local Information page contains information on the location of the conference, accommodations, and directions. Links Registration Local Information Room list First Announcement (June 28, 2005) Second Announcement (Nov 25, 2005) Third Announcement - Early Booking (Jan 11, 2006) Fourth Announcement - Call for Participation (Jan 24, 2006) Fifth Announcement - Special Section, Deadlines (Feb 19, 2006) Sixth Announcement - Call for Participation (Apr 10, 2006) Program (June 24, 2006) Slides of Presentations (July 27, 2006) Pictures from the conference (July 28, 2006) Proceedings Call for Submissions (August 28, 2006) Sponsors The CT 2006 conference was partly made possible by financial support from the following organizations. The Atlantic Association for Research in the Mathematical Sciences (AARMS). Dalhousie University, President's Office Dalhousie University, Office of the Vice-President Academic Dalhousie University, Faculty of Science St. Mary's University, Office of the Vice-President Academic St. Mary's University, Faculty of Science St. Mary's University, Faculty of Graduate Studies Contact For further information, please contact the organizers. Robert Dawson (Saint Mary's University, Halifax) Dorette Pronk (Dalhousie University, Halifax) Peter Selinger (Dalhousie University, Halifax)

Invited Speakers: Kathryn Hess (Lausanne) Steve Lack (W. Sydney) Tom Leinster (Glasgow) Steve Schanuel (Buffalo) Peter Selinger (Dalhousie) Scientific Committee: Jiri Adámek John Baez Michael Barr Eugenia Cheng Maria Manuel Clementino Marcelo Fiore Peter Freyd Jonathon Funk Peter Johnstone André Joyal Steve Lack Susan Niefield Phil Scott Ross Street Walter Tholen (chair) Enrico Vitale Organizers: Robert Dawson Dorette Pronk Peter Selinger Special Session Organizer: Bill Lawvere Links: Registration Local Information Program Excursions Slides Pictures Important Deadlines: Jan 25: Early booking Feb 15: Student support Feb 27: Submission Mar 1: Early registration Mar 15: Ext. submission Mar 30: Notification Apr 20: Booking Apr 20: Cancelations