From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/6439 Path: news.gmane.org!not-for-mail From: "Fred E.J. Linton" Newsgroups: gmane.science.mathematics.categories Subject: Re: source, sinks, and ? Date: Sun, 02 Jan 2011 19:40:14 -0500 Message-ID: Reply-To: "Fred E.J. Linton" NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1294063342 21041 80.91.229.12 (3 Jan 2011 14:02:22 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 3 Jan 2011 14:02:22 +0000 (UTC) To: Michael Shulman , Original-X-From: majordomo@mlist.mta.ca Mon Jan 03 15:02:16 2011 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtpx.mta.ca ([138.73.1.114]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1PZkzH-00034D-24 for gsmc-categories@m.gmane.org; Mon, 03 Jan 2011 15:02:15 +0100 Original-Received: from mlist.mta.ca ([138.73.1.63]:52694) by smtpx.mta.ca with esmtp (Exim 4.71) (envelope-from ) id 1PZkyW-0008Cq-Qd; Mon, 03 Jan 2011 10:01:28 -0400 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1PZkyN-0003Px-8v for categories-list@mlist.mta.ca; Mon, 03 Jan 2011 10:01:19 -0400 Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:6439 Archived-At: On Sun, 02 Jan 2011 07:17:17 PM EST Michael Shulman asked: > ... Is there a name for a family of the form { x_i --> y_j }_{i > \in I, j \in J} ? A cylinder? Or a frustrum (since I \neq J)? ... Looks more like a "mish-mash" to me :-) . Cheers, -- Fred [For admin and other information see: http://www.mta.ca/~cat-dist/ ]