From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/7083 Path: news.gmane.org!not-for-mail From: Jocelyn Ireson-Paine Newsgroups: gmane.science.mathematics.categories Subject: Re: Dualities arising via pairs of schizophrenic objects Date: Mon, 28 Nov 2011 17:04:09 +0000 (GMT) Message-ID: References: Reply-To: Jocelyn Ireson-Paine NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Trace: dough.gmane.org 1322574321 2036 80.91.229.12 (29 Nov 2011 13:45:21 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 29 Nov 2011 13:45:21 +0000 (UTC) Cc: "Fred E.J. Linton" , categories@mta.ca To: Graham White Original-X-From: majordomo@mlist.mta.ca Tue Nov 29 14:45:16 2011 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtpx.mta.ca ([138.73.1.4]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RVNzn-0001KA-81 for gsmc-categories@m.gmane.org; Tue, 29 Nov 2011 14:45:15 +0100 Original-Received: from mlist.mta.ca ([138.73.1.63]:55980) by smtpx.mta.ca with esmtp (Exim 4.76) (envelope-from ) id 1RVNx1-0001a6-Vi; Tue, 29 Nov 2011 09:42:24 -0400 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1RVNx0-0004PL-6Y for categories-list@mlist.mta.ca; Tue, 29 Nov 2011 09:42:22 -0400 In-Reply-To: Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:7083 Archived-At: >From the original description of this kind of object, I get the image of two networks (the two categories) which have only one vertex in common. Or to get more physical about it - which is a good way to generate mental images of real-world analogues whose names we can steal - two fishing nets or string bags tied together at a single knot. So what's a good name for that knot? A "junction"? A "contingence"? A "taction"? It's where two worlds touch, like a weak spot in the space-time continuum where the threads have worn away, or the Wood Between the Worlds in the Narnia novels. How about "crossover object"? Jocelyn Ireson-Paine http://www.j-paine.org http://www.spreadsheet-parts.org +44 (0)7768 534 091 Jocelyn's Cartoons: http://www.j-paine.org/blog/jocelyns_cartoons/ On Sun, 27 Nov 2011, Graham White wrote: > Two possible names are "liminal" (from limen, a doorway), or > "bifrontal" (from frons, which means face: one of the titles of Janus > is Janus bifrons). I kind of like liminal, because it emphasises the > function of the twofacedness, rather than simply the fact that the > object is twofaced. > > Graham [For admin and other information see: http://www.mta.ca/~cat-dist/ ]